72647625547231 has 32 divisors (see below), whose sum is σ = 87002035780608. Its totient is φ = 59310549492480.

The previous prime is 72647625547201. The next prime is 72647625547303. The reversal of 72647625547231 is 13274552674627.

It is a cyclic number.

It is not a de Polignac number, because 72647625547231 - 2²¹ = 72647623450079 is a prime.

It is a super-2 number, since 2×72647625547231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72647625547231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72647625547201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48189265 + ... + 49673941.

It is an arithmetic number, because the mean of its divisors is an integer number (2718813618144).

Almost surely, 2^{72647625547231} is an apocalyptic number.

72647625547231 is a deficient number, since it is larger than the sum of its proper divisors (14354410233377).

72647625547231 is a wasteful number, since it uses less digits than its factorization.

72647625547231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485991.

The product of its digits is 118540800, while the sum is 61.

The spelling of 72647625547231 in words is "seventy-two trillion, six hundred forty-seven billion, six hundred twenty-five million, five hundred forty-seven thousand, two hundred thirty-one".