72217673401 has 8 divisors (see below), whose sum is σ = 76120931520. Its totient is φ = 68324648112.

The previous prime is 72217673399. The next prime is 72217673447. The reversal of 72217673401 is 10437671227.

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 72217673401 - 2¹ = 72217673399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72217673461) 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, 2543710 + ... + 2571943.

It is an arithmetic number, because the mean of its divisors is an integer number (9515116440).

Almost surely, 2^72217673401 is an apocalyptic number.

It is an amenable number.

72217673401 is a deficient number, since it is larger than the sum of its proper divisors (3903258119).

72217673401 is a wasteful number, since it uses less digits than its factorization.

72217673401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116415.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 72217673401 in words is "seventy-two billion, two hundred seventeen million, six hundred seventy-three thousand, four hundred one".