80454136259 has 4 divisors (see below), whose sum is σ = 91947584304. Its totient is φ = 68960688216.

The previous prime is 80454136249. The next prime is 80454136261. The reversal of 80454136259 is 95263145408.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80454136259 - 2²⁴ = 80437359043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80454136219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5746724012 + ... + 5746724025.

It is an arithmetic number, because the mean of its divisors is an integer number (22986896076).

Almost surely, 2^80454136259 is an apocalyptic number.

80454136259 is a deficient number, since it is larger than the sum of its proper divisors (11493448045).

80454136259 is a wasteful number, since it uses less digits than its factorization.

80454136259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11493448044.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 80454136259 in words is "eighty billion, four hundred fifty-four million, one hundred thirty-six thousand, two hundred fifty-nine".