6976726857 has 8 divisors (see below), whose sum is σ = 10335891680. Its totient is φ = 4651151220.

The previous prime is 6976726819. The next prime is 6976726877. The reversal of 6976726857 is 7586276796.

It is a de Polignac number, because none of the positive numbers 2^k-6976726857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6976726794 and 6976726803.

It is not an unprimeable number, because it can be changed into a prime (6976726807) 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 7 ways as a sum of consecutive naturals, for example, 129198619 + ... + 129198672.

It is an arithmetic number, because the mean of its divisors is an integer number (1291986460).

Almost surely, 2^6976726857 is an apocalyptic number.

It is an amenable number.

6976726857 is a deficient number, since it is larger than the sum of its proper divisors (3359164823).

6976726857 is a wasteful number, since it uses less digits than its factorization.

6976726857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258397300 (or 258397294 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 63.

The square root of 6976726857 is about 83526.8032250726. The cubic root of 6976726857 is about 1910.8088327116.

The spelling of 6976726857 in words is "six billion, nine hundred seventy-six million, seven hundred twenty-six thousand, eight hundred fifty-seven".