72314120172057 has 4 divisors (see below), whose sum is σ = 96418826896080. Its totient is φ = 48209413448036.

The previous prime is 72314120172037. The next prime is 72314120172089. The reversal of 72314120172057 is 75027102141327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72314120172057 - 2¹¹ = 72314120170009 is a prime.

It is a super-2 number, since 2×72314120172057² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72314120172037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12052353362007 + ... + 12052353362012.

It is an arithmetic number, because the mean of its divisors is an integer number (24104706724020).

Almost surely, 2^{72314120172057} is an apocalyptic number.

It is an amenable number.

72314120172057 is a deficient number, since it is larger than the sum of its proper divisors (24104706724023).

72314120172057 is a wasteful number, since it uses less digits than its factorization.

72314120172057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24104706724022.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 72314120172057 in words is "seventy-two trillion, three hundred fourteen billion, one hundred twenty million, one hundred seventy-two thousand, fifty-seven".