73402281892 has 12 divisors (see below), whose sum is σ = 128457547596. Its totient is φ = 36700125440.

The previous prime is 73402281851. The next prime is 73402281937. The reversal of 73402281892 is 29818220437.

It can be written as a sum of positive squares in 2 ways, for example, as 34858383616 + 38543898276 = 186704^2 + 196326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77653 + ... + 390940.

It is an arithmetic number, because the mean of its divisors is an integer number (10704795633).

Almost surely, 2^73402281892 is an apocalyptic number.

It is an amenable number.

73402281892 is a deficient number, since it is larger than the sum of its proper divisors (55055265704).

73402281892 is a wasteful number, since it uses less digits than its factorization.

73402281892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507758 (or 507756 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 73402281892 in words is "seventy-three billion, four hundred two million, two hundred eighty-one thousand, eight hundred ninety-two".