73257918244 has 27 divisors (see below), whose sum is σ = 149139904977. Its totient is φ = 31394626704.

The previous prime is 73257918211. The next prime is 73257918257. The reversal of 73257918244 is 44281975237.

The square root of 73257918244 is 270662.

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., 68943004900 + 4314913344 = 262570^2 + 65688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73257918191 and 73257918200.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3779602 + ... + 3798934.

Almost surely, 2^73257918244 is an apocalyptic number.

73257918244 is the 270662-nd square number.

It is an amenable number.

73257918244 is an abundant number, since it is smaller than the sum of its proper divisors (75881986733).

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

73257918244 is an frugal number, since it uses more digits than its factorization.

73257918244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38684 (or 19342 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 73257918244 in words is "seventy-three billion, two hundred fifty-seven million, nine hundred eighteen thousand, two hundred forty-four".