73106931138 has 16 divisors (see below), whose sum is σ = 154814677920. Its totient is φ = 22935507776.

The previous prime is 73106931137. The next prime is 73106931229. The reversal of 73106931138 is 83113960137.

It is a self number, because there is not a number n which added to its sum of digits gives 73106931138.

It is not an unprimeable number, because it can be changed into a prime (73106931133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358367208 + ... + 358367411.

It is an arithmetic number, because the mean of its divisors is an integer number (9675917370).

Almost surely, 2^73106931138 is an apocalyptic number.

73106931138 is an abundant number, since it is smaller than the sum of its proper divisors (81707746782).

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

73106931138 is a wasteful number, since it uses less digits than its factorization.

73106931138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716734641.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 73106931138 in words is "seventy-three billion, one hundred six million, nine hundred thirty-one thousand, one hundred thirty-eight".