72265267684 has 27 divisors (see below), whose sum is σ = 127201425897. Its totient is φ = 35923221504.

The previous prime is 72265267673. The next prime is 72265267687. The reversal of 72265267684 is 48676256227.

The square root of 72265267684 is 268822.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 71144892900 + 1120374784 = 266730^2 + 33472^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72265267687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 138174247 + ... + 138174769.

Almost surely, 2^72265267684 is an apocalyptic number.

72265267684 is the 268822-nd square number.

It is an amenable number.

72265267684 is a deficient number, since it is larger than the sum of its proper divisors (54936158213).

72265267684 is an frugal number, since it uses more digits than its factorization.

72265267684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 782 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 55.

The spelling of 72265267684 in words is "seventy-two billion, two hundred sixty-five million, two hundred sixty-seven thousand, six hundred eighty-four".