6404705980 has 48 divisors (see below), whose sum is σ = 13961356416. Its totient is φ = 2466247680.

The previous prime is 6404705929. The next prime is 6404706013. The reversal of 6404705980 is 895074046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1492 + ... + 113188.

It is an arithmetic number, because the mean of its divisors is an integer number (290861592).

Almost surely, 2^6404705980 is an apocalyptic number.

It is an amenable number.

6404705980 is an abundant number, since it is smaller than the sum of its proper divisors (7556650436).

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

6404705980 is a wasteful number, since it uses less digits than its factorization.

6404705980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111814 (or 111812 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 6404705980 is about 80029.4069701882. The cubic root of 6404705980 is about 1857.0904891235.

The spelling of 6404705980 in words is "six billion, four hundred four million, seven hundred five thousand, nine hundred eighty".