72472612153 has 8 divisors (see below), whose sum is σ = 73304553960. Its totient is φ = 71645061120.

The previous prime is 72472612129. The next prime is 72472612159. The reversal of 72472612153 is 35121627427.

It can be written as a sum of positive squares in 4 ways, for example, as 10527375609 + 61945236544 = 102603^2 + 248888^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72472612153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72472612159) 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, 1064488 + ... + 1130521.

It is an arithmetic number, because the mean of its divisors is an integer number (9163069245).

Almost surely, 2^72472612153 is an apocalyptic number.

It is an amenable number.

72472612153 is a deficient number, since it is larger than the sum of its proper divisors (831941807).

72472612153 is a wasteful number, since it uses less digits than its factorization.

72472612153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195387.

The product of its digits is 141120, while the sum is 40.

The spelling of 72472612153 in words is "seventy-two billion, four hundred seventy-two million, six hundred twelve thousand, one hundred fifty-three".