72417045251724 has 24 divisors (see below), whose sum is σ = 169024016528640. Its totient is φ = 24131742092304.

The previous prime is 72417045251671. The next prime is 72417045251729. The reversal of 72417045251724 is 42715254071427.

It is not an unprimeable number, because it can be changed into a prime (72417045251729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909082464 + ... + 909162119.

It is an arithmetic number, because the mean of its divisors is an integer number (7042667355360).

Almost surely, 2^{72417045251724} is an apocalyptic number.

It is an amenable number.

72417045251724 is an abundant number, since it is smaller than the sum of its proper divisors (96606971276916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72417045251724 is a wasteful number, since it uses less digits than its factorization.

72417045251724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818247909 (or 1818247907 counting only the distinct ones).

The product of its (nonzero) digits is 4390400, while the sum is 51.

The spelling of 72417045251724 in words is "seventy-two trillion, four hundred seventeen billion, forty-five million, two hundred fifty-one thousand, seven hundred twenty-four".