73380850321 has 9 divisors (see below), whose sum is σ = 76006615633. Its totient is φ = 70842891280.

The previous prime is 73380850237. The next prime is 73380850327. The reversal of 73380850321 is 12305808337.

The square root of 73380850321 is 270889.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2411890321 + 70968960000 = 49111^2 + 266400^2 .

It is not a de Polignac number, because 73380850321 - 2¹⁵ = 73380817553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73380850327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7851111 + ... + 7860451.

Almost surely, 2^73380850321 is an apocalyptic number.

73380850321 is the 270889-th square number.

73380850321 is the 135445-th centered octagonal number.

It is an amenable number.

73380850321 is a deficient number, since it is larger than the sum of its proper divisors (2625765312).

73380850321 is an frugal number, since it uses more digits than its factorization.

73380850321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18740 (or 9370 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 73380850321 in words is "seventy-three billion, three hundred eighty million, eight hundred fifty thousand, three hundred twenty-one".