18472859902 has 32 divisors (see below), whose sum is σ = 31844336832. Its totient is φ = 7872920064.

The previous prime is 18472859879. The next prime is 18472859921. The reversal of 18472859902 is 20995827481.

It is a congruent number.

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, 1916848 + ... + 1926460.

It is an arithmetic number, because the mean of its divisors is an integer number (995135526).

Almost surely, 2^18472859902 is an apocalyptic number.

18472859902 is a deficient number, since it is larger than the sum of its proper divisors (13371476930).

18472859902 is a wasteful number, since it uses less digits than its factorization.

18472859902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 18472859902 in words is "eighteen billion, four hundred seventy-two million, eight hundred fifty-nine thousand, nine hundred two".