72671621754237 has 32 divisors (see below), whose sum is σ = 111929398732800. Its totient is φ = 41449904075520.

The previous prime is 72671621754217. The next prime is 72671621754241. The reversal of 72671621754237 is 73245712617627.

It is not a de Polignac number, because 72671621754237 - 2⁸ = 72671621753981 is a prime.

It is a super-3 number, since 3×72671621754237³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72671621754217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4349148 + ... + 12816330.

It is an arithmetic number, because the mean of its divisors is an integer number (3497793710400).

Almost surely, 2^{72671621754237} is an apocalyptic number.

It is an amenable number.

72671621754237 is a deficient number, since it is larger than the sum of its proper divisors (39257776978563).

72671621754237 is a wasteful number, since it uses less digits than its factorization.

72671621754237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482513.

The product of its digits is 41489280, while the sum is 60.

The spelling of 72671621754237 in words is "seventy-two trillion, six hundred seventy-one billion, six hundred twenty-one million, seven hundred fifty-four thousand, two hundred thirty-seven".