162713725209 has 16 divisors (see below), whose sum is σ = 275494138240. Its totient is φ = 92979271440.

The previous prime is 162713725201. The next prime is 162713725241. The reversal of 162713725209 is 902527317261.

It is a happy number.

162713725209 is a `hidden beast` number, since 1 + 6 + 2 + 71 + 372 + 5 + 209 = 666.

It is not a de Polignac number, because 162713725209 - 2³ = 162713725201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162713725201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430459402 + ... + 430459779.

It is an arithmetic number, because the mean of its divisors is an integer number (17218383640).

Almost surely, 2^162713725209 is an apocalyptic number.

It is an amenable number.

162713725209 is a deficient number, since it is larger than the sum of its proper divisors (112780413031).

162713725209 is an equidigital number, since it uses as much as digits as its factorization.

162713725209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860919197 (or 860919191 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

It can be divided in two parts, 16271 and 3725209, that added together give a triangular number (3741480 = T₂₇₃₅).

The spelling of 162713725209 in words is "one hundred sixty-two billion, seven hundred thirteen million, seven hundred twenty-five thousand, two hundred nine".