18307689696 has 72 divisors (see below), whose sum is σ = 52113834864. Its totient is φ = 6096545280.

The previous prime is 18307689683. The next prime is 18307689703. The reversal of 18307689696 is 69698670381.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266100 + ... + 327756.

It is an arithmetic number, because the mean of its divisors is an integer number (723803262).

Almost surely, 2^18307689696 is an apocalyptic number.

18307689696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18307689696 is an abundant number, since it is smaller than the sum of its proper divisors (33806145168).

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

18307689696 is a wasteful number, since it uses less digits than its factorization.

18307689696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62704 (or 62693 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 18307689696 in words is "eighteen billion, three hundred seven million, six hundred eighty-nine thousand, six hundred ninety-six".