72274371764 has 48 divisors (see below), whose sum is σ = 149566099200. Its totient is φ = 29900054016.

The previous prime is 72274371703. The next prime is 72274371809. The reversal of 72274371764 is 46717347227.

It is a super-4 number, since 4×72274371764⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806892 + ... + 5819324.

It is an arithmetic number, because the mean of its divisors is an integer number (3115960400).

Almost surely, 2^72274371764 is an apocalyptic number.

It is an amenable number.

72274371764 is an abundant number, since it is smaller than the sum of its proper divisors (77291727436).

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

72274371764 is a wasteful number, since it uses less digits than its factorization.

72274371764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19632 (or 19630 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 50.

The spelling of 72274371764 in words is "seventy-two billion, two hundred seventy-four million, three hundred seventy-one thousand, seven hundred sixty-four".