6761654957 has 2 divisors, whose sum is σ = 6761654958. Its totient is φ = 6761654956.

The previous prime is 6761654929. The next prime is 6761654971. The reversal of 6761654957 is 7594561676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6609527401 + 152127556 = 81299^2 + 12334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6761654957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6761254957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380827478 + 3380827479.

It is an arithmetic number, because the mean of its divisors is an integer number (3380827479).

Almost surely, 2^6761654957 is an apocalyptic number.

It is an amenable number.

6761654957 is a deficient number, since it is larger than the sum of its proper divisors (1).

6761654957 is an equidigital number, since it uses as much as digits as its factorization.

6761654957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 56.

The square root of 6761654957 is about 82229.2828437656. The cubic root of 6761654957 is about 1890.9686772233.

The spelling of 6761654957 in words is "six billion, seven hundred sixty-one million, six hundred fifty-four thousand, nine hundred fifty-seven".