72522236144772 has 36 divisors (see below), whose sum is σ = 189233648438016. Its totient is φ = 23394269723760.

The previous prime is 72522236144723. The next prime is 72522236144797. The reversal of 72522236144772 is 27744163222527.

72522236144772 is a `hidden beast` number, since 7 + 2 + 52 + 2 + 23 + 61 + 447 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32492040168 + ... + 32492042399.

Almost surely, 2^{72522236144772} is an apocalyptic number.

It is an amenable number.

72522236144772 is an abundant number, since it is smaller than the sum of its proper divisors (116711412293244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72522236144772 is a wasteful number, since it uses less digits than its factorization.

72522236144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64984082608 (or 64984082603 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 54.

The spelling of 72522236144772 in words is "seventy-two trillion, five hundred twenty-two billion, two hundred thirty-six million, one hundred forty-four thousand, seven hundred seventy-two".