72338559725 has 6 divisors (see below), whose sum is σ = 89699814090. Its totient is φ = 57870847760.

The previous prime is 72338559721. The next prime is 72338559739. The reversal of 72338559725 is 52795583327.

It can be written as a sum of positive squares in 3 ways, for example, as 10390336489 + 61948223236 = 101933^2 + 248894^2 .

It is not a de Polignac number, because 72338559725 - 2² = 72338559721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72338559721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1446771170 + ... + 1446771219.

It is an arithmetic number, because the mean of its divisors is an integer number (14949969015).

Almost surely, 2^72338559725 is an apocalyptic number.

It is an amenable number.

72338559725 is a deficient number, since it is larger than the sum of its proper divisors (17361254365).

72338559725 is a wasteful number, since it uses less digits than its factorization.

72338559725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893542399 (or 2893542394 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 56.

The spelling of 72338559725 in words is "seventy-two billion, three hundred thirty-eight million, five hundred fifty-nine thousand, seven hundred twenty-five".