72264013597 has 8 divisors (see below), whose sum is σ = 74030092920. Its totient is φ = 70498103040.

The previous prime is 72264013517. The next prime is 72264013649. The reversal of 72264013597 is 79531046227.

It can be written as a sum of positive squares in 4 ways, for example, as 1331812036 + 70932201561 = 36494^2 + 266331^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72264013597 - 2¹¹ = 72264011549 is a prime.

It is a super-2 number, since 2×72264013597² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72264013517) 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, 1542673 + ... + 1588825.

It is an arithmetic number, because the mean of its divisors is an integer number (9253761615).

Almost surely, 2^72264013597 is an apocalyptic number.

It is an amenable number.

72264013597 is a deficient number, since it is larger than the sum of its proper divisors (1766079323).

72264013597 is a wasteful number, since it uses less digits than its factorization.

72264013597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84383.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 72264013597 in words is "seventy-two billion, two hundred sixty-four million, thirteen thousand, five hundred ninety-seven".