80844242945 has 16 divisors (see below), whose sum is σ = 102259597440. Its totient is φ = 61187094144.

The previous prime is 80844242933. The next prime is 80844242987. The reversal of 80844242945 is 54924244808.

It is not a de Polignac number, because 80844242945 - 2²⁴ = 80827465729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80844242893 and 80844242902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516212 + ... + 654341.

It is an arithmetic number, because the mean of its divisors is an integer number (6391224840).

Almost surely, 2^80844242945 is an apocalyptic number.

It is an amenable number.

80844242945 is a deficient number, since it is larger than the sum of its proper divisors (21415354495).

80844242945 is a wasteful number, since it uses less digits than its factorization.

80844242945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171304.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 80844242945 in words is "eighty billion, eight hundred forty-four million, two hundred forty-two thousand, nine hundred forty-five".