73318955843 has 4 divisors (see below), whose sum is σ = 83793092400. Its totient is φ = 62844819288.

The previous prime is 73318955819. The next prime is 73318955861. The reversal of 73318955843 is 34855981337.

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

It is a cyclic number.

It is not a de Polignac number, because 73318955843 - 2¹⁴ = 73318939459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73318955803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5237068268 + ... + 5237068281.

It is an arithmetic number, because the mean of its divisors is an integer number (20948273100).

Almost surely, 2^73318955843 is an apocalyptic number.

73318955843 is a deficient number, since it is larger than the sum of its proper divisors (10474136557).

73318955843 is a wasteful number, since it uses less digits than its factorization.

73318955843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10474136556.

The product of its digits is 10886400, while the sum is 56.

The spelling of 73318955843 in words is "seventy-three billion, three hundred eighteen million, nine hundred fifty-five thousand, eight hundred forty-three".