18664867477004 has 36 divisors (see below), whose sum is σ = 38007773037864. Its totient is φ = 7996821408576.

The previous prime is 18664867476991. The next prime is 18664867477019. The reversal of 18664867477004 is 40077476846681.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13677449 + ... + 14980064.

It is an arithmetic number, because the mean of its divisors is an integer number (1055771473274).

Almost surely, 2^{18664867477004} is an apocalyptic number.

18664867477004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18664867477004 is an abundant number, since it is smaller than the sum of its proper divisors (19342905560860).

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

18664867477004 is a wasteful number, since it uses less digits than its factorization.

18664867477004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28660854 (or 28660845 counting only the distinct ones).

The product of its (nonzero) digits is 303464448, while the sum is 68.

The spelling of 18664867477004 in words is "eighteen trillion, six hundred sixty-four billion, eight hundred sixty-seven million, four hundred seventy-seven thousand, four".