80137791 has 6 divisors (see below), whose sum is σ = 115754600. Its totient is φ = 53425188.

The previous prime is 80137769. The next prime is 80137793. The reversal of 80137791 is 19773108.

It is not a de Polignac number, because 80137791 - 2¹⁸ = 79875647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80137793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4452091 + ... + 4452108.

Almost surely, 2^80137791 is an apocalyptic number.

80137791 is a deficient number, since it is larger than the sum of its proper divisors (35616809).

80137791 is a wasteful number, since it uses less digits than its factorization.

80137791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904205 (or 8904202 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 80137791 is about 8951.9713471391. The cubic root of 80137791 is about 431.1341808700.

The spelling of 80137791 in words is "eighty million, one hundred thirty-seven thousand, seven hundred ninety-one".