73443717125 has 16 divisors (see below), whose sum is σ = 91812417840. Its totient is φ = 58655833600.

The previous prime is 73443717107. The next prime is 73443717167. The reversal of 73443717125 is 52171734437.

It can be written as a sum of positive squares in 8 ways, for example, as 2432659684 + 71011057441 = 49322^2 + 266479^2 .

It is not a de Polignac number, because 73443717125 - 2²⁰ = 73442668549 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 421280 + ... + 569529.

It is an arithmetic number, because the mean of its divisors is an integer number (5738276115).

Almost surely, 2^73443717125 is an apocalyptic number.

It is an amenable number.

73443717125 is a deficient number, since it is larger than the sum of its proper divisors (18368700715).

73443717125 is an equidigital number, since it uses as much as digits as its factorization.

73443717125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991417 (or 991407 counting only the distinct ones).

The product of its digits is 493920, while the sum is 44.

The spelling of 73443717125 in words is "seventy-three billion, four hundred forty-three million, seven hundred seventeen thousand, one hundred twenty-five".