6718780432 has 60 divisors (see below), whose sum is σ = 16307833836. Its totient is φ = 2657975040.

The previous prime is 6718780429. The next prime is 6718780459. The reversal of 6718780432 is 2340878176.

It can be written as a sum of positive squares in 2 ways, for example, as 2077901056 + 4640879376 = 45584^2 + 68124^2 .

It is a super-2 number, since 2×6718780432² = 90284020986852213248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319419 + ... + 339802.

Almost surely, 2^6718780432 is an apocalyptic number.

It is an amenable number.

6718780432 is an abundant number, since it is smaller than the sum of its proper divisors (9589053404).

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

6718780432 is a wasteful number, since it uses less digits than its factorization.

6718780432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659256 (or 659243 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 6718780432 is about 81968.1671870245. The cubic root of 6718780432 is about 1886.9634275095.

The spelling of 6718780432 in words is "six billion, seven hundred eighteen million, seven hundred eighty thousand, four hundred thirty-two".