6406761768 has 32 divisors (see below), whose sum is σ = 17472987360. Its totient is φ = 1941442880.

The previous prime is 6406761719. The next prime is 6406761773. The reversal of 6406761768 is 8671676046.

It is a self number, because there is not a number n which added to its sum of digits gives 6406761768.

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, 12133755 + ... + 12134282.

It is an arithmetic number, because the mean of its divisors is an integer number (546030855).

Almost surely, 2^6406761768 is an apocalyptic number.

It is an amenable number.

6406761768 is an abundant number, since it is smaller than the sum of its proper divisors (11066225592).

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

6406761768 is a wasteful number, since it uses less digits than its factorization.

6406761768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24268057 (or 24268053 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 6406761768 is about 80042.2498934157. The cubic root of 6406761768 is about 1857.2891646989.

The spelling of 6406761768 in words is "six billion, four hundred six million, seven hundred sixty-one thousand, seven hundred sixty-eight".