192990662172 has 72 divisors (see below), whose sum is σ = 608213004672. Its totient is φ = 50127444000.

The previous prime is 192990662171. The next prime is 192990662177. The reversal of 192990662172 is 271266099291.

192990662172 is a `hidden beast` number, since 1 + 9 + 2 + 9 + 9 + 0 + 6 + 621 + 7 + 2 = 666.

192990662172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192990662171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34807954 + ... + 34813497.

Almost surely, 2^192990662172 is an apocalyptic number.

192990662172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

192990662172 is an abundant number, since it is smaller than the sum of its proper divisors (415222342500).

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

192990662172 is a wasteful number, since it uses less digits than its factorization.

192990662172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69621479 (or 69621474 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 192990662172 in words is "one hundred ninety-two billion, nine hundred ninety million, six hundred sixty-two thousand, one hundred seventy-two".