72755533555727 has 12 divisors (see below), whose sum is σ = 81066450961440. Its totient is φ = 65235347638560.

The previous prime is 72755533555703. The next prime is 72755533555753.

72755533555727 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72755533555727 - 2³⁸ = 72480655648783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72755533555027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4118384327 + ... + 4118401992.

It is an arithmetic number, because the mean of its divisors is an integer number (6755537580120).

Almost surely, 2^{72755533555727} is an apocalyptic number.

72755533555727 is a deficient number, since it is larger than the sum of its proper divisors (8310917405713).

72755533555727 is a wasteful number, since it uses less digits than its factorization.

72755533555727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8236786414 (or 8236786403 counting only the distinct ones).

The product of its digits is 1350562500, while the sum is 68.

The spelling of 72755533555727 in words is "seventy-two trillion, seven hundred fifty-five billion, five hundred thirty-three million, five hundred fifty-five thousand, seven hundred twenty-seven".