6929572864 has 22 divisors (see below), whose sum is σ = 13852380614. Its totient is φ = 3464785920.

The previous prime is 6929572849. The next prime is 6929572883. The reversal of 6929572864 is 4682759296.

It can be written as a sum of positive squares in only one way, i.e., 3917758464 + 3011814400 = 62592^2 + 54880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6929572799 and 6929572808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382557 + ... + 3384604.

Almost surely, 2^6929572864 is an apocalyptic number.

6929572864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6929572864 is a deficient number, since it is larger than the sum of its proper divisors (6922807750).

6929572864 is an equidigital number, since it uses as much as digits as its factorization.

6929572864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767181 (or 6767163 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The square root of 6929572864 is about 83244.0560280432. The cubic root of 6929572864 is about 1906.4942007977.

The spelling of 6929572864 in words is "six billion, nine hundred twenty-nine million, five hundred seventy-two thousand, eight hundred sixty-four".