172057374719 has 4 divisors (see below), whose sum is σ = 181113026040. Its totient is φ = 163001723400.

The previous prime is 172057374703. The next prime is 172057374737. The reversal of 172057374719 is 917473750271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172057374719 - 2⁴ = 172057374703 is a prime.

It is a super-2 number, since 2×172057374719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172057374739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4527825632 + ... + 4527825669.

It is an arithmetic number, because the mean of its divisors is an integer number (45278256510).

Almost surely, 2^172057374719 is an apocalyptic number.

172057374719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

172057374719 is a deficient number, since it is larger than the sum of its proper divisors (9055651321).

172057374719 is an equidigital number, since it uses as much as digits as its factorization.

172057374719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055651320.

The product of its (nonzero) digits is 2593080, while the sum is 53.

The spelling of 172057374719 in words is "one hundred seventy-two billion, fifty-seven million, three hundred seventy-four thousand, seven hundred nineteen".