172912291190 has 16 divisors (see below), whose sum is σ = 311265332928. Its totient is φ = 69159758976.

The previous prime is 172912291177. The next prime is 172912291213. The reversal of 172912291190 is 91192219271.

It is a super-2 number, since 2×172912291190² (a number of 23 digits) contains 22 as substring.

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, 502382 + ... + 773441.

It is an arithmetic number, because the mean of its divisors is an integer number (19454083308).

Almost surely, 2^172912291190 is an apocalyptic number.

172912291190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172912291190 is a deficient number, since it is larger than the sum of its proper divisors (138353041738).

172912291190 is a wasteful number, since it uses less digits than its factorization.

172912291190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289383.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 172912291190 in words is "one hundred seventy-two billion, nine hundred twelve million, two hundred ninety-one thousand, one hundred ninety".