80880404440 has 32 divisors (see below), whose sum is σ = 198524630160. Its totient is φ = 29411056000.

The previous prime is 80880404401. The next prime is 80880404441. The reversal of 80880404440 is 4440408808.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 80880404393 and 80880404402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80880404441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91909111 + ... + 91909990.

Almost surely, 2^80880404440 is an apocalyptic number.

It is an amenable number.

80880404440 is an abundant number, since it is smaller than the sum of its proper divisors (117644225720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80880404440 is a wasteful number, since it uses less digits than its factorization.

80880404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183819123 (or 183819119 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 80880404440 in words is "eighty billion, eight hundred eighty million, four hundred four thousand, four hundred forty".