73460922721 has 4 divisors (see below), whose sum is σ = 73644117444. Its totient is φ = 73277728000.

The previous prime is 73460922709. The next prime is 73460922757. The reversal of 73460922721 is 12722906437.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51420551121 + 22040371600 = 226761^2 + 148460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73460922721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73460923721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91596760 + ... + 91597561.

It is an arithmetic number, because the mean of its divisors is an integer number (18411029361).

Almost surely, 2^73460922721 is an apocalyptic number.

It is an amenable number.

73460922721 is a deficient number, since it is larger than the sum of its proper divisors (183194723).

73460922721 is a wasteful number, since it uses less digits than its factorization.

73460922721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183194722.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 73460922721 in words is "seventy-three billion, four hundred sixty million, nine hundred twenty-two thousand, seven hundred twenty-one".