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8465830799868 = 22351321131672731
BaseRepresentation
bin111101100110001101011…
…0101100110100111111100
31002222022210022012220100000
41323030122311212213330
52102201010141043433
630001052102434300
71532431115325411
oct173143265464774
932868708186300
108465830799868
11277437a867962
12b48899732990
1349542a996200
14213a6985c108
15ea337e26113
hex7b31ad669fc

8465830799868 has 432 divisors, whose sum is σ = 24397500830976. Its totient is φ = 2565419351040.

The previous prime is 8465830799827. The next prime is 8465830799869. The reversal of 8465830799868 is 8689970385648.

8465830799868 is a `hidden beast` number, since 8 + 465 + 8 + 3 + 0 + 7 + 9 + 98 + 68 = 666.

It is a super-2 number, since 2×84658307998682 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8465830799869) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3099900063 + ... + 3099902793.

It is an arithmetic number, because the mean of its divisors is an integer number (56475696368).

Almost surely, 28465830799868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8465830799868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12198750415488).

8465830799868 is an abundant number, since it is smaller than the sum of its proper divisors (15931670031108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8465830799868 is a wasteful number, since it uses less digits than its factorization.

8465830799868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 5016453120, while the sum is 81.

The spelling of 8465830799868 in words is "eight trillion, four hundred sixty-five billion, eight hundred thirty million, seven hundred ninety-nine thousand, eight hundred sixty-eight".