18436484732 has 12 divisors (see below), whose sum is σ = 32287356696. Its totient is φ = 9211525680.

The previous prime is 18436484707. The next prime is 18436484761. The reversal of 18436484732 is 23748463481.

It is a super-2 number, since 2×18436484732² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672994 + ... + 1683977.

It is an arithmetic number, because the mean of its divisors is an integer number (2690613058).

Almost surely, 2^18436484732 is an apocalyptic number.

It is an amenable number.

18436484732 is a deficient number, since it is larger than the sum of its proper divisors (13850871964).

18436484732 is a wasteful number, since it uses less digits than its factorization.

18436484732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358348 (or 3358346 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 50.

The spelling of 18436484732 in words is "eighteen billion, four hundred thirty-six million, four hundred eighty-four thousand, seven hundred thirty-two".