18935715248 has 40 divisors (see below), whose sum is σ = 38761566720. Its totient is φ = 8936412480.

The previous prime is 18935715193. The next prime is 18935715257. The reversal of 18935715248 is 84251753981.

It is a super-2 number, since 2×18935715248² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18935715248.

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 7 ways as a sum of consecutive naturals, for example, 32540 + ... + 197307.

It is an arithmetic number, because the mean of its divisors is an integer number (969039168).

Almost surely, 2^18935715248 is an apocalyptic number.

It is an amenable number.

18935715248 is an abundant number, since it is smaller than the sum of its proper divisors (19825851472).

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

18935715248 is a wasteful number, since it uses less digits than its factorization.

18935715248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230145 (or 230139 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The spelling of 18935715248 in words is "eighteen billion, nine hundred thirty-five million, seven hundred fifteen thousand, two hundred forty-eight".