172374771723 has 32 divisors (see below), whose sum is σ = 287225866752. Its totient is φ = 89332588800.

The previous prime is 172374771691. The next prime is 172374771761. The reversal of 172374771723 is 327177473271.

It is not a de Polignac number, because 172374771723 - 2⁵ = 172374771691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172374771223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788986 + ... + 983487.

It is an arithmetic number, because the mean of its divisors is an integer number (8975808336).

Almost surely, 2^172374771723 is an apocalyptic number.

172374771723 is a deficient number, since it is larger than the sum of its proper divisors (114851095029).

172374771723 is a wasteful number, since it uses less digits than its factorization.

172374771723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772915.

The product of its digits is 2420208, while the sum is 51.

The spelling of 172374771723 in words is "one hundred seventy-two billion, three hundred seventy-four million, seven hundred seventy-one thousand, seven hundred twenty-three".