73031881884 has 48 divisors (see below), whose sum is σ = 194311077408. Its totient is φ = 21149503488.

The previous prime is 73031881877. The next prime is 73031881889. The reversal of 73031881884 is 48818813037.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73031881889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13766557 + ... + 13771860.

It is an arithmetic number, because the mean of its divisors is an integer number (4048147446).

Almost surely, 2^73031881884 is an apocalyptic number.

It is an amenable number.

73031881884 is an abundant number, since it is smaller than the sum of its proper divisors (121279195524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73031881884 is a wasteful number, since it uses less digits than its factorization.

73031881884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27538454 (or 27538452 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 73031881884 in words is "seventy-three billion, thirty-one million, eight hundred eighty-one thousand, eight hundred eighty-four".