72714626661 has 8 divisors (see below), whose sum is σ = 101168176320. Its totient is φ = 46368747392.

The previous prime is 72714626617. The next prime is 72714626671. The reversal of 72714626661 is 16662641727.

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 72714626661 - 2¹³ = 72714618469 is a prime.

It is a super-2 number, since 2×72714626661² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72714626661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72714626671) 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, 526917516 + ... + 526917653.

It is an arithmetic number, because the mean of its divisors is an integer number (12646022040).

Almost surely, 2^72714626661 is an apocalyptic number.

It is an amenable number.

72714626661 is a deficient number, since it is larger than the sum of its proper divisors (28453549659).

72714626661 is a wasteful number, since it uses less digits than its factorization.

72714626661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053835195.

The product of its digits is 1016064, while the sum is 48.

The spelling of 72714626661 in words is "seventy-two billion, seven hundred fourteen million, six hundred twenty-six thousand, six hundred sixty-one".