72647627547231 has 24 divisors (see below), whose sum is σ = 114723368519760. Its totient is φ = 43933357852800.

The previous prime is 72647627547221. The next prime is 72647627547317. The reversal of 72647627547231 is 13274572674627.

72647627547231 is a `hidden beast` number, since 7 + 2 + 6 + 4 + 7 + 62 + 7 + 547 + 23 + 1 = 666.

It is not a de Polignac number, because 72647627547231 - 2⁶ = 72647627547167 is a prime.

It is a super-2 number, since 2×72647627547231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72647627547211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 795848526 + ... + 795939803.

It is an arithmetic number, because the mean of its divisors is an integer number (4780140354990).

Almost surely, 2^{72647627547231} is an apocalyptic number.

72647627547231 is a deficient number, since it is larger than the sum of its proper divisors (42075740972529).

72647627547231 is a wasteful number, since it uses less digits than its factorization.

72647627547231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591788807 (or 1591788804 counting only the distinct ones).

The product of its digits is 165957120, while the sum is 63.

The spelling of 72647627547231 in words is "seventy-two trillion, six hundred forty-seven billion, six hundred twenty-seven million, five hundred forty-seven thousand, two hundred thirty-one".