80409591446 has 4 divisors (see below), whose sum is σ = 120614387172. Its totient is φ = 40204795722.

The previous prime is 80409591419. The next prime is 80409591461. The reversal of 80409591446 is 64419590408.

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

It is a junction number, because it is equal to n+sod(n) for n = 80409591394 and 80409591403.

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, 20102397860 + ... + 20102397863.

It is an arithmetic number, because the mean of its divisors is an integer number (30153596793).

Almost surely, 2^80409591446 is an apocalyptic number.

80409591446 is a deficient number, since it is larger than the sum of its proper divisors (40204795726).

80409591446 is a wasteful number, since it uses less digits than its factorization.

80409591446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40204795725.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 80409591446 in words is "eighty billion, four hundred nine million, five hundred ninety-one thousand, four hundred forty-six".