73818863319845 has 64 divisors (see below), whose sum is σ = 105848551858176. Its totient is φ = 48321785191680.

The previous prime is 73818863319833. The next prime is 73818863319857. The reversal of 73818863319845 is 54891336881837.

It is an interprime number because it is at equal distance from previous prime (73818863319833) and next prime (73818863319857).

It is not a de Polignac number, because 73818863319845 - 2⁶ = 73818863319781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4958604992 + ... + 4958619878.

It is an arithmetic number, because the mean of its divisors is an integer number (1653883622784).

Almost surely, 2^{73818863319845} is an apocalyptic number.

It is an amenable number.

73818863319845 is a deficient number, since it is larger than the sum of its proper divisors (32029688538331).

73818863319845 is a wasteful number, since it uses less digits than its factorization.

73818863319845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26730.

The product of its digits is 836075520, while the sum is 74.

The spelling of 73818863319845 in words is "seventy-three trillion, eight hundred eighteen billion, eight hundred sixty-three million, three hundred nineteen thousand, eight hundred forty-five".