18531257096 has 16 divisors (see below), whose sum is σ = 37904844240. Its totient is φ = 8423298640.

The previous prime is 18531257083. The next prime is 18531257123. The reversal of 18531257096 is 69075213581.

It is a self number, because there is not a number n which added to its sum of digits gives 18531257096.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105291146 + ... + 105291321.

It is an arithmetic number, because the mean of its divisors is an integer number (2369052765).

Almost surely, 2^18531257096 is an apocalyptic number.

It is an amenable number.

18531257096 is an abundant number, since it is smaller than the sum of its proper divisors (19373587144).

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

18531257096 is a wasteful number, since it uses less digits than its factorization.

18531257096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210582484 (or 210582480 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 18531257096 in words is "eighteen billion, five hundred thirty-one million, two hundred fifty-seven thousand, ninety-six".