6432568779 has 16 divisors (see below), whose sum is σ = 10556010752. Its totient is φ = 3393003168.

The previous prime is 6432568757. The next prime is 6432568787. The reversal of 6432568779 is 9778652346.

It is not a de Polignac number, because 6432568779 - 2⁷ = 6432568651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6432568729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11780989 + ... + 11781534.

It is an arithmetic number, because the mean of its divisors is an integer number (659750672).

Almost surely, 2^6432568779 is an apocalyptic number.

6432568779 is a deficient number, since it is larger than the sum of its proper divisors (4123441973).

6432568779 is a wasteful number, since it uses less digits than its factorization.

6432568779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23562546.

The product of its digits is 15240960, while the sum is 57.

The square root of 6432568779 is about 80203.2965594308. The cubic root of 6432568779 is about 1859.7795995640.

The spelling of 6432568779 in words is "six billion, four hundred thirty-two million, five hundred sixty-eight thousand, seven hundred seventy-nine".