172992090790 has 16 divisors (see below), whose sum is σ = 322123204080. Its totient is φ = 66810738400.

The previous prime is 172992090743. The next prime is 172992090847. The reversal of 172992090790 is 97090299271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298261936 + ... + 298262515.

It is an arithmetic number, because the mean of its divisors is an integer number (20132700255).

Almost surely, 2^172992090790 is an apocalyptic number.

172992090790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172992090790 is a deficient number, since it is larger than the sum of its proper divisors (149131113290).

172992090790 is a wasteful number, since it uses less digits than its factorization.

172992090790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596524487.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The spelling of 172992090790 in words is "one hundred seventy-two billion, nine hundred ninety-two million, ninety thousand, seven hundred ninety".