80290995878 has 4 divisors (see below), whose sum is σ = 120436493820. Its totient is φ = 40145497938.

The previous prime is 80290995857. The next prime is 80290995947. The reversal of 80290995878 is 87859909208.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072748968 + ... + 20072748971.

It is an arithmetic number, because the mean of its divisors is an integer number (30109123455).

Almost surely, 2^80290995878 is an apocalyptic number.

80290995878 is a deficient number, since it is larger than the sum of its proper divisors (40145497942).

80290995878 is a wasteful number, since it uses less digits than its factorization.

80290995878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40145497941.

The product of its (nonzero) digits is 26127360, while the sum is 65.

The spelling of 80290995878 in words is "eighty billion, two hundred ninety million, nine hundred ninety-five thousand, eight hundred seventy-eight".