18816939032 has 16 divisors (see below), whose sum is σ = 36815750640. Its totient is φ = 8999405536.

The previous prime is 18816939013. The next prime is 18816939049. The reversal of 18816939032 is 23093961881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51132803 + ... + 51133170.

It is an arithmetic number, because the mean of its divisors is an integer number (2300984415).

Almost surely, 2^18816939032 is an apocalyptic number.

It is an amenable number.

18816939032 is a deficient number, since it is larger than the sum of its proper divisors (17998811608).

18816939032 is a wasteful number, since it uses less digits than its factorization.

18816939032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102266002 (or 102265998 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 18816939032 in words is "eighteen billion, eight hundred sixteen million, nine hundred thirty-nine thousand, thirty-two".