72656865627 has 8 divisors (see below), whose sum is σ = 99494086416. Its totient is φ = 47128777632.

The previous prime is 72656865623. The next prime is 72656865637.

72656865627 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72656865627 - 2² = 72656865623 is a prime.

It is a super-3 number, since 3×72656865627³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72656865623) 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, 327283068 + ... + 327283289.

It is an arithmetic number, because the mean of its divisors is an integer number (12436760802).

Almost surely, 2^72656865627 is an apocalyptic number.

72656865627 is a deficient number, since it is larger than the sum of its proper divisors (26837220789).

72656865627 is a wasteful number, since it uses less digits than its factorization.

72656865627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654566397.

The product of its digits is 50803200, while the sum is 60.

The spelling of 72656865627 in words is "seventy-two billion, six hundred fifty-six million, eight hundred sixty-five thousand, six hundred twenty-seven".