18432634684 has 12 divisors (see below), whose sum is σ = 32262245344. Its totient is φ = 9214850304.

The previous prime is 18432634681. The next prime is 18432634687. The reversal of 18432634684 is 48643623481.

It is an interprime number because it is at equal distance from previous prime (18432634681) and next prime (18432634687).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18432634681) by changing a digit.

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, 338244 + ... + 388939.

Almost surely, 2^18432634684 is an apocalyptic number.

It is an amenable number.

18432634684 is a deficient number, since it is larger than the sum of its proper divisors (13829610660).

18432634684 is a wasteful number, since it uses less digits than its factorization.

18432634684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733524 (or 733522 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 49.

The spelling of 18432634684 in words is "eighteen billion, four hundred thirty-two million, six hundred thirty-four thousand, six hundred eighty-four".