72445366574425 has 12 divisors (see below), whose sum is σ = 96742427979820. Its totient is φ = 53498116854720.

The previous prime is 72445366574407. The next prime is 72445366574479. The reversal of 72445366574425 is 52447566354427.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22096166830336 + 50349199744089 = 4700656^2 + 7095717^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72445366574425 is a prime.

It is a super-2 number, since 2×72445366574425² (a number of 29 digits) contains 22 as substring.

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, 111454409790 + ... + 111454410439.

Almost surely, 2^{72445366574425} is an apocalyptic number.

It is an amenable number.

72445366574425 is a deficient number, since it is larger than the sum of its proper divisors (24297061405395).

72445366574425 is a wasteful number, since it uses less digits than its factorization.

72445366574425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222908820252 (or 222908820247 counting only the distinct ones).

The product of its digits is 677376000, while the sum is 64.

The spelling of 72445366574425 in words is "seventy-two trillion, four hundred forty-five billion, three hundred sixty-six million, five hundred seventy-four thousand, four hundred twenty-five".