80719233815 has 16 divisors (see below), whose sum is σ = 110263113216. Its totient is φ = 56152509600.

The previous prime is 80719233811. The next prime is 80719233919. The reversal of 80719233815 is 51833291708.

It is not a de Polignac number, because 80719233815 - 2² = 80719233811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80719233815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80719233811) 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, 31903571 + ... + 31906100.

It is an arithmetic number, because the mean of its divisors is an integer number (6891444576).

Almost surely, 2^80719233815 is an apocalyptic number.

80719233815 is a deficient number, since it is larger than the sum of its proper divisors (29543879401).

80719233815 is a wasteful number, since it uses less digits than its factorization.

80719233815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63809710.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 80719233815 in words is "eighty billion, seven hundred nineteen million, two hundred thirty-three thousand, eight hundred fifteen".