18859125892 has 24 divisors (see below), whose sum is σ = 33658934400. Its totient is φ = 9242634336.

The previous prime is 18859125871. The next prime is 18859125907. The reversal of 18859125892 is 29852195881.

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, 177459 + ... + 263077.

It is an arithmetic number, because the mean of its divisors is an integer number (1402455600).

Almost surely, 2^18859125892 is an apocalyptic number.

It is an amenable number.

18859125892 is a deficient number, since it is larger than the sum of its proper divisors (14799808508).

18859125892 is a wasteful number, since it uses less digits than its factorization.

18859125892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86715 (or 86713 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 58.

The spelling of 18859125892 in words is "eighteen billion, eight hundred fifty-nine million, one hundred twenty-five thousand, eight hundred ninety-two".