18612633614 has 4 divisors (see below), whose sum is σ = 27918950424. Its totient is φ = 9306316806.

The previous prime is 18612633581. The next prime is 18612633659. The reversal of 18612633614 is 41633621681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41633621681 = 2089 ⋅19929929.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4653158402 + ... + 4653158405.

It is an arithmetic number, because the mean of its divisors is an integer number (6979737606).

Almost surely, 2^18612633614 is an apocalyptic number.

18612633614 is a deficient number, since it is larger than the sum of its proper divisors (9306316810).

18612633614 is an equidigital number, since it uses as much as digits as its factorization.

18612633614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306316809.

The product of its digits is 124416, while the sum is 41.

The spelling of 18612633614 in words is "eighteen billion, six hundred twelve million, six hundred thirty-three thousand, six hundred fourteen".