725121333066472 has 64 divisors (see below), whose sum is σ = 1387658329097040. Its totient is φ = 355175557632000.

The previous prime is 725121333066419. The next prime is 725121333066523. The reversal of 725121333066472 is 274660333121527.

It can be written as a sum of positive squares in 8 ways, for example, as 378529165342276 + 346592167724196 = 19455826^2 + 18616986^2 .

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, 16226688 + ... + 41395024.

Almost surely, 2^{725121333066472} is an apocalyptic number.

It is an amenable number.

725121333066472 is a deficient number, since it is larger than the sum of its proper divisors (662536996030568).

725121333066472 is a wasteful number, since it uses less digits than its factorization.

725121333066472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168822 (or 25168818 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 52.

Adding to 725121333066472 its reverse (274660333121527), we get a palindrome (999781666187999).

The spelling of 725121333066472 in words is "seven hundred twenty-five trillion, one hundred twenty-one billion, three hundred thirty-three million, sixty-six thousand, four hundred seventy-two".