18950133264 has 40 divisors (see below), whose sum is σ = 48991566720. Its totient is φ = 6311929728.

The previous prime is 18950133263. The next prime is 18950133283. The reversal of 18950133264 is 46233105981.

It is not an unprimeable number, because it can be changed into a prime (18950133263) by changing a digit.

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, 85059 + ... + 212450.

It is an arithmetic number, because the mean of its divisors is an integer number (1224789168).

Almost surely, 2^18950133264 is an apocalyptic number.

It is an amenable number.

18950133264 is an abundant number, since it is smaller than the sum of its proper divisors (30041433456).

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

18950133264 is a wasteful number, since it uses less digits than its factorization.

18950133264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298847 (or 298841 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 18950133264 in words is "eighteen billion, nine hundred fifty million, one hundred thirty-three thousand, two hundred sixty-four".