72571988917527 has 16 divisors (see below), whose sum is σ = 105562197799680. Its totient is φ = 43981798089600.

The previous prime is 72571988917499. The next prime is 72571988917567.

72571988917527 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72571988917527 - 2⁷ = 72571988917399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72571988917567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29434402 + ... + 31804527.

It is an arithmetic number, because the mean of its divisors is an integer number (6597637362480).

Almost surely, 2^{72571988917527} is an apocalyptic number.

72571988917527 is a deficient number, since it is larger than the sum of its proper divisors (32990208882153).

72571988917527 is a wasteful number, since it uses less digits than its factorization.

72571988917527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61274854.

The product of its digits is 1244678400, while the sum is 78.

The spelling of 72571988917527 in words is "seventy-two trillion, five hundred seventy-one billion, nine hundred eighty-eight million, nine hundred seventeen thousand, five hundred twenty-seven".