18964246732 has 12 divisors (see below), whose sum is σ = 33204902976. Its totient is φ = 9477131600.

The previous prime is 18964246729. The next prime is 18964246771. The reversal of 18964246732 is 23764246981.

It is a super-2 number, since 2×18964246732² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18964246732.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239388 + ... + 1254595.

It is an arithmetic number, because the mean of its divisors is an integer number (2767075248).

Almost surely, 2^18964246732 is an apocalyptic number.

It is an amenable number.

18964246732 is a deficient number, since it is larger than the sum of its proper divisors (14240656244).

18964246732 is a wasteful number, since it uses less digits than its factorization.

18964246732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495888 (or 2495886 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 18964246732 in words is "eighteen billion, nine hundred sixty-four million, two hundred forty-six thousand, seven hundred thirty-two".