6476540720 has 40 divisors (see below), whose sum is σ = 16216264176. Its totient is φ = 2391337728.

The previous prime is 6476540669. The next prime is 6476540723. The reversal of 6476540720 is 270456746.

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

It is not an unprimeable number, because it can be changed into a prime (6476540723) 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, 3112682 + ... + 3114761.

Almost surely, 2^6476540720 is an apocalyptic number.

It is an amenable number.

6476540720 is an abundant number, since it is smaller than the sum of its proper divisors (9739723456).

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

6476540720 is a wasteful number, since it uses less digits than its factorization.

6476540720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227469 (or 6227463 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 6476540720 is about 80476.9576959766. The cubic root of 6476540720 is about 1864.0076918273.

The spelling of 6476540720 in words is "six billion, four hundred seventy-six million, five hundred forty thousand, seven hundred twenty".