72370007439 has 64 divisors (see below), whose sum is σ = 103885701120. Its totient is φ = 44728104960.

The previous prime is 72370007429. The next prime is 72370007491. The reversal of 72370007439 is 93470007327.

It is a de Polignac number, because none of the positive numbers 2^k-72370007439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72370007439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72370007419) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117293059 + ... + 117293675.

It is an arithmetic number, because the mean of its divisors is an integer number (1623214080).

Almost surely, 2^72370007439 is an apocalyptic number.

72370007439 is a deficient number, since it is larger than the sum of its proper divisors (31515693681).

72370007439 is a wasteful number, since it uses less digits than its factorization.

72370007439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 222264, while the sum is 42.

The spelling of 72370007439 in words is "seventy-two billion, three hundred seventy million, seven thousand, four hundred thirty-nine".