73013112816 has 80 divisors (see below), whose sum is σ = 215837209344. Its totient is φ = 20834307072.

The previous prime is 73013112811. The next prime is 73013112877. The reversal of 73013112816 is 61821131037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73013112811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126376 + ... + 402488.

Almost surely, 2^73013112816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73013112816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107918604672).

73013112816 is an abundant number, since it is smaller than the sum of its proper divisors (142824096528).

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

73013112816 is a wasteful number, since it uses less digits than its factorization.

73013112816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276918 (or 276912 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 73013112816 in words is "seventy-three billion, thirteen million, one hundred twelve thousand, eight hundred sixteen".