18835331572212 has 48 divisors (see below), whose sum is σ = 44669631283200. Its totient is φ = 6175914685920.

The previous prime is 18835331572201. The next prime is 18835331572229. The reversal of 18835331572212 is 21227513353881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24805012 + ... + 25553067.

It is an arithmetic number, because the mean of its divisors is an integer number (930617318400).

Almost surely, 2^{18835331572212} is an apocalyptic number.

18835331572212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18835331572212 is an abundant number, since it is smaller than the sum of its proper divisors (25834299710988).

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

18835331572212 is a wasteful number, since it uses less digits than its factorization.

18835331572212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50358596 (or 50358594 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 18835331572212 in words is "eighteen trillion, eight hundred thirty-five billion, three hundred thirty-one million, five hundred seventy-two thousand, two hundred twelve".