18469307916 has 36 divisors (see below), whose sum is σ = 46824871912. Its totient is φ = 6138163584.

The previous prime is 18469307893. The next prime is 18469307929. The reversal of 18469307916 is 61970396481.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18469307916² (a number of 21 digits) contains 22 as substring.

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, 749050 + ... + 773313.

Almost surely, 2^18469307916 is an apocalyptic number.

It is an amenable number.

18469307916 is an abundant number, since it is smaller than the sum of its proper divisors (28355563996).

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

18469307916 is a wasteful number, since it uses less digits than its factorization.

18469307916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522710 (or 1522705 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 18469307916 in words is "eighteen billion, four hundred sixty-nine million, three hundred seven thousand, nine hundred sixteen".