6926786561 has 16 divisors (see below), whose sum is σ = 7658115840. Its totient is φ = 6235649280.

The previous prime is 6926786557. The next prime is 6926786591. The reversal of 6926786561 is 1656876296.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6926786561 - 2² = 6926786557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6926786497 and 6926786506.

It is not an unprimeable number, because it can be changed into a prime (6926786501) 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, 12905 + ... + 118406.

It is an arithmetic number, because the mean of its divisors is an integer number (478632240).

Almost surely, 2^6926786561 is an apocalyptic number.

It is an amenable number.

6926786561 is a deficient number, since it is larger than the sum of its proper divisors (731329279).

6926786561 is a wasteful number, since it uses less digits than its factorization.

6926786561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131464.

The product of its digits is 6531840, while the sum is 56.

The square root of 6926786561 is about 83227.3185979219. The cubic root of 6926786561 is about 1906.2386399452.

The spelling of 6926786561 in words is "six billion, nine hundred twenty-six million, seven hundred eighty-six thousand, five hundred sixty-one".