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64113884748 = 22332997239883
BaseRepresentation
bin111011101101011111…
…000011111001001100
320010111012120210201000
4323231133003321030
52022301123302443
645241543020300
74426542012534
oct735537037114
9203435523630
1064113884748
1125210686611
121051373a690
136079b44214
143162db04c4
151a039c18d3
hexeed7c3e4c

64113884748 has 192 divisors, whose sum is σ = 174650112000. Its totient is φ = 20313151488.

The previous prime is 64113884717. The next prime is 64113884749. The reversal of 64113884748 is 84748831146.

It is a super-2 number, since 2×641138847482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64113884694 and 64113884703.

It is not an unprimeable number, because it can be changed into a prime (64113884749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72608715 + ... + 72609597.

It is an arithmetic number, because the mean of its divisors is an integer number (909636000).

Almost surely, 264113884748 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 64113884748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87325056000).

64113884748 is an abundant number, since it is smaller than the sum of its proper divisors (110536227252).

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

64113884748 is a wasteful number, since it uses less digits than its factorization.

64113884748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1253 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The spelling of 64113884748 in words is "sixty-four billion, one hundred thirteen million, eight hundred eighty-four thousand, seven hundred forty-eight".