7657475856 has 40 divisors (see below), whose sum is σ = 19784953920. Its totient is φ = 2552086656.

The previous prime is 7657475843. The next prime is 7657475863. The reversal of 7657475856 is 6585747567.

It is a self number, because there is not a number n which added to its sum of digits gives 7657475856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555706 + ... + 569318.

It is an arithmetic number, because the mean of its divisors is an integer number (494623848).

Almost surely, 2^7657475856 is an apocalyptic number.

It is an amenable number.

7657475856 is an abundant number, since it is smaller than the sum of its proper divisors (12127478064).

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

7657475856 is a wasteful number, since it uses less digits than its factorization.

7657475856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25343 (or 25337 counting only the distinct ones).

The product of its digits is 49392000, while the sum is 60.

The square root of 7657475856 is about 87507.0046110596. The cubic root of 7657475856 is about 1971.0389750844.

The spelling of 7657475856 in words is "seven billion, six hundred fifty-seven million, four hundred seventy-five thousand, eight hundred fifty-six".