18662688352 has 48 divisors (see below), whose sum is σ = 45808422912. Its totient is φ = 7271176320.

The previous prime is 18662688283. The next prime is 18662688367. The reversal of 18662688352 is 25388626681.

It is a junction number, because it is equal to n+sod(n) for n = 18662688293 and 18662688302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3784608 + ... + 3789535.

It is an arithmetic number, because the mean of its divisors is an integer number (954342144).

Almost surely, 2^18662688352 is an apocalyptic number.

It is an amenable number.

18662688352 is an abundant number, since it is smaller than the sum of its proper divisors (27145734560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18662688352 is a wasteful number, since it uses less digits than its factorization.

18662688352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574171 (or 7574163 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 55.

The spelling of 18662688352 in words is "eighteen billion, six hundred sixty-two million, six hundred eighty-eight thousand, three hundred fifty-two".