6434479760 has 20 divisors (see below), whose sum is σ = 14960165628. Its totient is φ = 2573791872.

The previous prime is 6434479759. The next prime is 6434479763. The reversal of 6434479760 is 679744346.

It can be written as a sum of positive squares in 2 ways, for example, as 1058070784 + 5376408976 = 32528^2 + 73324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 6434479699 and 6434479708.

It is not an unprimeable number, because it can be changed into a prime (6434479763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40215419 + ... + 40215578.

Almost surely, 2^6434479760 is an apocalyptic number.

It is an amenable number.

6434479760 is an abundant number, since it is smaller than the sum of its proper divisors (8525685868).

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

6434479760 is a wasteful number, since it uses less digits than its factorization.

6434479760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80431010 (or 80431004 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 50.

The square root of 6434479760 is about 80215.2090317042. The cubic root of 6434479760 is about 1859.9637484745.

The spelling of 6434479760 in words is "six billion, four hundred thirty-four million, four hundred seventy-nine thousand, seven hundred sixty".