3976279774813 has 2 divisors, whose sum is σ = 3976279774814. Its totient is φ = 3976279774812.

The previous prime is 3976279774759. The next prime is 3976279774867. The reversal of 3976279774813 is 3184779726793.

It is a balanced prime because it is at equal distance from previous prime (3976279774759) and next prime (3976279774867).

It can be written as a sum of positive squares in only one way, i.e., 2461268358649 + 1515011416164 = 1568843^2 + 1230858^2 .

It is a cyclic number.

It is not a de Polignac number, because 3976279774813 - 2²⁹ = 3975742903901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3976279775813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1988139887406 + 1988139887407.

It is an arithmetic number, because the mean of its divisors is an integer number (1988139887407).

Almost surely, 2^{3976279774813} is an apocalyptic number.

It is an amenable number.

3976279774813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3976279774813 is an equidigital number, since it uses as much as digits as its factorization.

3976279774813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672126336, while the sum is 73.

The spelling of 3976279774813 in words is "three trillion, nine hundred seventy-six billion, two hundred seventy-nine million, seven hundred seventy-four thousand, eight hundred thirteen".