72344471171 has 24 divisors (see below), whose sum is σ = 84996852336. Its totient is φ = 61390586880.

The previous prime is 72344471161. The next prime is 72344471183. The reversal of 72344471171 is 17117444327.

It is not a de Polignac number, because 72344471171 - 2¹⁸ = 72344209027 is a prime.

It is a super-2 number, since 2×72344471171² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72344471161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10571711 + ... + 10578551.

It is an arithmetic number, because the mean of its divisors is an integer number (3541535514).

Almost surely, 2^72344471171 is an apocalyptic number.

72344471171 is a deficient number, since it is larger than the sum of its proper divisors (12652381165).

72344471171 is a wasteful number, since it uses less digits than its factorization.

72344471171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8972 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The spelling of 72344471171 in words is "seventy-two billion, three hundred forty-four million, four hundred seventy-one thousand, one hundred seventy-one".