5157617856 has 28 divisors (see below), whose sum is σ = 13646197752. Its totient is φ = 1719205888.

The previous prime is 5157617851. The next prime is 5157617863. The reversal of 5157617856 is 6587167515.

It is a junction number, because it is equal to n+sod(n) for n = 5157617799 and 5157617808.

It is not an unprimeable number, because it can be changed into a prime (5157617851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13431105 + ... + 13431488.

Almost surely, 2^5157617856 is an apocalyptic number.

It is an amenable number.

5157617856 is an abundant number, since it is smaller than the sum of its proper divisors (8488579896).

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

5157617856 is a wasteful number, since it uses less digits than its factorization.

5157617856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26862608 (or 26862598 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 51.

The square root of 5157617856 is about 71816.5569767863. The cubic root of 5157617856 is about 1727.7585610890.

The spelling of 5157617856 in words is "five billion, one hundred fifty-seven million, six hundred seventeen thousand, eight hundred fifty-six".