72440374013 has 8 divisors (see below), whose sum is σ = 82864891200. Its totient is φ = 62034829920.

The previous prime is 72440374009. The next prime is 72440374021. The reversal of 72440374013 is 31047304427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72440374013 - 2² = 72440374009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72440374093) 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, 4735088 + ... + 4750361.

It is an arithmetic number, because the mean of its divisors is an integer number (10358111400).

Almost surely, 2^72440374013 is an apocalyptic number.

It is an amenable number.

72440374013 is a deficient number, since it is larger than the sum of its proper divisors (10424517187).

72440374013 is a wasteful number, since it uses less digits than its factorization.

72440374013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486547.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 72440374013 in words is "seventy-two billion, four hundred forty million, three hundred seventy-four thousand, thirteen".