808863904450 has 48 divisors (see below), whose sum is σ = 1734629690880. Its totient is φ = 274870552320.

The previous prime is 808863904447. The next prime is 808863904469. The reversal of 808863904450 is 54409368808.

It is a junction number, because it is equal to n+sod(n) for n = 808863904391 and 808863904400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10186290 + ... + 10265389.

It is an arithmetic number, because the mean of its divisors is an integer number (36138118560).

Almost surely, 2^808863904450 is an apocalyptic number.

808863904450 is an abundant number, since it is smaller than the sum of its proper divisors (925765786430).

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

808863904450 is a wasteful number, since it uses less digits than its factorization.

808863904450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20451811 (or 20451806 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 808863904450 in words is "eight hundred eight billion, eight hundred sixty-three million, nine hundred four thousand, four hundred fifty".