73125894724 has 9 divisors (see below), whose sum is σ = 127971262237. Its totient is φ = 36562676944.

The previous prime is 73125894713. The next prime is 73125894749. The reversal of 73125894724 is 42749852137.

The square root of 73125894724 is 270418.

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., 23128934724 + 49996960000 = 152082^2 + 223600^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 473232 + ... + 608440.

Almost surely, 2^73125894724 is an apocalyptic number.

73125894724 is the 270418-th square number.

It is an amenable number.

73125894724 is a deficient number, since it is larger than the sum of its proper divisors (54845367513).

73125894724 is an frugal number, since it uses more digits than its factorization.

73125894724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270422 (or 135211 counting only the distinct ones).

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

The spelling of 73125894724 in words is "seventy-three billion, one hundred twenty-five million, eight hundred ninety-four thousand, seven hundred twenty-four".