18717583235464 has 32 divisors (see below), whose sum is σ = 35151230916000. Its totient is φ = 9343927625472.

The previous prime is 18717583235441. The next prime is 18717583235479. The reversal of 18717583235464 is 46453238571781.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18717583235396 and 18717583235405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24891507 + ... + 25632445.

It is an arithmetic number, because the mean of its divisors is an integer number (1098475966125).

Almost surely, 2^{18717583235464} is an apocalyptic number.

It is an amenable number.

18717583235464 is a deficient number, since it is larger than the sum of its proper divisors (16433647680536).

18717583235464 is a wasteful number, since it uses less digits than its factorization.

18717583235464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745957 (or 745953 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 64.

The spelling of 18717583235464 in words is "eighteen trillion, seven hundred seventeen billion, five hundred eighty-three million, two hundred thirty-five thousand, four hundred sixty-four".