73138313828 has 12 divisors (see below), whose sum is σ = 128707089840. Its totient is φ = 36364859592.

The previous prime is 73138313777. The next prime is 73138313837. The reversal of 73138313828 is 82831383137.

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, 51073526 + ... + 51074957.

It is an arithmetic number, because the mean of its divisors is an integer number (10725590820).

Almost surely, 2^73138313828 is an apocalyptic number.

It is an amenable number.

73138313828 is a deficient number, since it is larger than the sum of its proper divisors (55568776012).

73138313828 is a wasteful number, since it uses less digits than its factorization.

73138313828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102148666 (or 102148664 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The spelling of 73138313828 in words is "seventy-three billion, one hundred thirty-eight million, three hundred thirteen thousand, eight hundred twenty-eight".