72702367775 has 12 divisors (see below), whose sum is σ = 90167406744. Its totient is φ = 58151268000.

The previous prime is 72702367769. The next prime is 72702367811. The reversal of 72702367775 is 57776320727.

It is not a de Polignac number, because 72702367775 - 2²⁶ = 72635258911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124616 + ... + 401165.

It is an arithmetic number, because the mean of its divisors is an integer number (7513950562).

Almost surely, 2^72702367775 is an apocalyptic number.

72702367775 is a deficient number, since it is larger than the sum of its proper divisors (17465038969).

72702367775 is a wasteful number, since it uses less digits than its factorization.

72702367775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531322 (or 531317 counting only the distinct ones).

The product of its (nonzero) digits is 6050520, while the sum is 53.

The spelling of 72702367775 in words is "seventy-two billion, seven hundred two million, three hundred sixty-seven thousand, seven hundred seventy-five".