72528367772 has 24 divisors (see below), whose sum is σ = 148977189984. Its totient is φ = 30243488832.

The previous prime is 72528367763. The next prime is 72528367801. The reversal of 72528367772 is 27776382527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35003003 + ... + 35005074.

It is an arithmetic number, because the mean of its divisors is an integer number (6207382916).

Almost surely, 2^72528367772 is an apocalyptic number.

It is an amenable number.

72528367772 is an abundant number, since it is smaller than the sum of its proper divisors (76448822212).

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

72528367772 is a wasteful number, since it uses less digits than its factorization.

72528367772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70008125 (or 70008123 counting only the distinct ones).

The product of its digits is 13829760, while the sum is 56.

The spelling of 72528367772 in words is "seventy-two billion, five hundred twenty-eight million, three hundred sixty-seven thousand, seven hundred seventy-two".