18693075328 has 32 divisors (see below), whose sum is σ = 37252091160. Its totient is φ = 9343531008.

The previous prime is 18693075307. The next prime is 18693075341. The reversal of 18693075328 is 82357039681.

It is a tau number, because it is divible by the number of its divisors (32).

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 in 3 ways as a sum of consecutive naturals, for example, 406600 + ... + 450232.

Almost surely, 2^18693075328 is an apocalyptic number.

It is an amenable number.

18693075328 is a deficient number, since it is larger than the sum of its proper divisors (18559015832).

18693075328 is an equidigital number, since it uses as much as digits as its factorization.

18693075328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46994 (or 46982 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 18693075328 in words is "eighteen billion, six hundred ninety-three million, seventy-five thousand, three hundred twenty-eight".