72172956024305 has 8 divisors (see below), whose sum is σ = 86632214737344. Its totient is φ = 57721919814000.

The previous prime is 72172956024263. The next prime is 72172956024307. The reversal of 72172956024305 is 50342065927127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72172956024305 - 2⁶ = 72172956024241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72172956024307) 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, 2055606371 + ... + 2055641480.

It is an arithmetic number, because the mean of its divisors is an integer number (10829026842168).

Almost surely, 2^{72172956024305} is an apocalyptic number.

It is an amenable number.

72172956024305 is a deficient number, since it is larger than the sum of its proper divisors (14459258713039).

72172956024305 is a wasteful number, since it uses less digits than its factorization.

72172956024305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111251367.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 72172956024305 in words is "seventy-two trillion, one hundred seventy-two billion, nine hundred fifty-six million, twenty-four thousand, three hundred five".