72217262037 has 16 divisors (see below), whose sum is σ = 96505432128. Its totient is φ = 48037029120.

The previous prime is 72217262009. The next prime is 72217262053. The reversal of 72217262037 is 73026271227.

It is not a de Polignac number, because 72217262037 - 2²⁸ = 71948826581 is a prime.

It is a super-2 number, since 2×72217262037² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72217261986 and 72217262004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72217262137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6648703 + ... + 6659555.

It is an arithmetic number, because the mean of its divisors is an integer number (6031589508).

Almost surely, 2^72217262037 is an apocalyptic number.

It is an amenable number.

72217262037 is a deficient number, since it is larger than the sum of its proper divisors (24288170091).

72217262037 is a wasteful number, since it uses less digits than its factorization.

72217262037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620.

The product of its (nonzero) digits is 98784, while the sum is 39.

The spelling of 72217262037 in words is "seventy-two billion, two hundred seventeen million, two hundred sixty-two thousand, thirty-seven".