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5216748945408 = 21435721121317
BaseRepresentation
bin100101111101001111001…
…1101111100000000000000
3200110201100012111101200000
41023322132131330000000
51140432400212223113
615032312534400000
71045616621253600
oct113723635740000
920421305441600
105216748945408
111731457863300
1270305a800000
132bac25385110
141406c6074c00
1590a762cb373
hex4be9e77c000

5216748945408 has 3240 divisors, whose sum is σ = 22785843081456. Its totient is φ = 1177194332160.

The previous prime is 5216748945407. The next prime is 5216748945427. The reversal of 5216748945408 is 8045498476125.

It is a happy number.

5216748945408 is a `hidden beast` number, since 5 + 2 + 1 + 6 + 7 + 4 + 89 + 4 + 540 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216748945407) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 306867585016 + ... + 306867585032.

Almost surely, 25216748945408 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 5216748945408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11392921540728).

5216748945408 is an abundant number, since it is smaller than the sum of its proper divisors (17569094136048).

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

5216748945408 is a wasteful number, since it uses less digits than its factorization.

5216748945408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 63.

The spelling of 5216748945408 in words is "five trillion, two hundred sixteen billion, seven hundred forty-eight million, nine hundred forty-five thousand, four hundred eight".