6956936561 has 4 divisors (see below), whose sum is σ = 7074850800. Its totient is φ = 6839022324.

The previous prime is 6956936557. The next prime is 6956936587. The reversal of 6956936561 is 1656396596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6956936561 - 2² = 6956936557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6956936497 and 6956936506.

It is not an unprimeable number, because it can be changed into a prime (6956936521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58957031 + ... + 58957148.

It is an arithmetic number, because the mean of its divisors is an integer number (1768712700).

Almost surely, 2^6956936561 is an apocalyptic number.

It is an amenable number.

6956936561 is a deficient number, since it is larger than the sum of its proper divisors (117914239).

6956936561 is a wasteful number, since it uses less digits than its factorization.

6956936561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117914238.

The product of its digits is 7873200, while the sum is 56.

The square root of 6956936561 is about 83408.2523555074. The cubic root of 6956936561 is about 1909.0003779437. Note that the first 3 decimals are identical.

The spelling of 6956936561 in words is "six billion, nine hundred fifty-six million, nine hundred thirty-six thousand, five hundred sixty-one".