72217673402 has 16 divisors (see below), whose sum is σ = 124124977152. Its totient is φ = 30869618640.

The previous prime is 72217673399. The next prime is 72217673447. The reversal of 72217673402 is 20437671227.

It is a self number, because there is not a number n which added to its sum of digits gives 72217673402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6728849 + ... + 6739572.

It is an arithmetic number, because the mean of its divisors is an integer number (7757811072).

Almost surely, 2^72217673402 is an apocalyptic number.

72217673402 is a deficient number, since it is larger than the sum of its proper divisors (51907303750).

72217673402 is a wasteful number, since it uses less digits than its factorization.

72217673402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13468813.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 72217673402 in words is "seventy-two billion, two hundred seventeen million, six hundred seventy-three thousand, four hundred two".