804400001680 has 40 divisors (see below), whose sum is σ = 2040250915584. Its totient is φ = 292509091200.

The previous prime is 804400001677. The next prime is 804400001693. The reversal of 804400001680 is 86100004408.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457044576 + ... + 457046335.

Almost surely, 2^804400001680 is an apocalyptic number.

804400001680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804400001680 is an abundant number, since it is smaller than the sum of its proper divisors (1235850913904).

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

804400001680 is a wasteful number, since it uses less digits than its factorization.

804400001680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914090935 (or 914090929 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The spelling of 804400001680 in words is "eight hundred four billion, four hundred million, one thousand, six hundred eighty".