172074914693 has 6 divisors (see below), whose sum is σ = 189140195622. Its totient is φ = 156431740520.

The previous prime is 172074914689. The next prime is 172074914771. The reversal of 172074914693 is 396419470271.

It can be written as a sum of positive squares in only one way, i.e., 120237643009 + 51837271684 = 346753^2 + 227678^2 .

It is not a de Polignac number, because 172074914693 - 2² = 172074914689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172074914633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711053246 + ... + 711053487.

It is an arithmetic number, because the mean of its divisors is an integer number (31523365937).

Almost surely, 2^172074914693 is an apocalyptic number.

It is an amenable number.

172074914693 is a deficient number, since it is larger than the sum of its proper divisors (17065280929).

172074914693 is a wasteful number, since it uses less digits than its factorization.

172074914693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422106755 (or 1422106744 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 172074914693 in words is "one hundred seventy-two billion, seventy-four million, nine hundred fourteen thousand, six hundred ninety-three".