6769578656 has 12 divisors (see below), whose sum is σ = 13327608042. Its totient is φ = 3384789312.

The previous prime is 6769578637. The next prime is 6769578667. The reversal of 6769578656 is 6568759676.

It can be written as a sum of positive squares in only one way, i.e., 6642250000 + 127328656 = 81500^2 + 11284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6769578592 and 6769578601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105774635 + ... + 105774698.

Almost surely, 2^6769578656 is an apocalyptic number.

It is an amenable number.

6769578656 is a deficient number, since it is larger than the sum of its proper divisors (6558029386).

6769578656 is a wasteful number, since it uses less digits than its factorization.

6769578656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211549343 (or 211549335 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 65.

The square root of 6769578656 is about 82277.4492555524. The cubic root of 6769578656 is about 1891.7070377622.

The spelling of 6769578656 in words is "six billion, seven hundred sixty-nine million, five hundred seventy-eight thousand, six hundred fifty-six".