492687642856 has 64 divisors (see below), whose sum is σ = 961650144000. Its totient is φ = 236356404480.

The previous prime is 492687642841. The next prime is 492687642907. The reversal of 492687642856 is 658246786294.

It is a super-2 number, since 2×492687642856² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 492687642791 and 492687642800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67981425 + ... + 67988671.

It is an arithmetic number, because the mean of its divisors is an integer number (15025783500).

Almost surely, 2^492687642856 is an apocalyptic number.

It is an amenable number.

492687642856 is a deficient number, since it is larger than the sum of its proper divisors (468962501144).

492687642856 is a wasteful number, since it uses less digits than its factorization.

492687642856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082 (or 9078 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 67.

The spelling of 492687642856 in words is "four hundred ninety-two billion, six hundred eighty-seven million, six hundred forty-two thousand, eight hundred fifty-six".