102856485724 has 6 divisors (see below), whose sum is σ = 179998850024. Its totient is φ = 51428242860.

The previous prime is 102856485709. The next prime is 102856485733. The reversal of 102856485724 is 427584658201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12857060712 + ... + 12857060719.

Almost surely, 2^102856485724 is an apocalyptic number.

It is an amenable number.

102856485724 is a deficient number, since it is larger than the sum of its proper divisors (77142364300).

102856485724 is a wasteful number, since it uses less digits than its factorization.

102856485724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714121435 (or 25714121433 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 102856485724 in words is "one hundred two billion, eight hundred fifty-six million, four hundred eighty-five thousand, seven hundred twenty-four".