80438367615 has 32 divisors (see below), whose sum is σ = 131548769280. Its totient is φ = 41961489024.

The previous prime is 80438367599. The next prime is 80438367619. The reversal of 80438367615 is 51676383408.

It is not a de Polignac number, because 80438367615 - 2⁴ = 80438367599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80438367619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190404 + ... + 443993.

It is an arithmetic number, because the mean of its divisors is an integer number (4110899040).

Almost surely, 2^80438367615 is an apocalyptic number.

80438367615 is a deficient number, since it is larger than the sum of its proper divisors (51110401665).

80438367615 is a wasteful number, since it uses less digits than its factorization.

80438367615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634591.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 80438367615 in words is "eighty billion, four hundred thirty-eight million, three hundred sixty-seven thousand, six hundred fifteen".