6692990917 has 2 divisors, whose sum is σ = 6692990918. Its totient is φ = 6692990916.

The previous prime is 6692990849. The next prime is 6692990947. The reversal of 6692990917 is 7190992966.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3479348196 + 3213642721 = 58986^2 + 56689^2 .

It is a cyclic number.

It is not a de Polignac number, because 6692990917 - 2¹⁵ = 6692958149 is a prime.

It is a super-2 number, since 2×6692990917² = 89592254830089001778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6692990947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3346495458 + 3346495459.

It is an arithmetic number, because the mean of its divisors is an integer number (3346495459).

Almost surely, 2^6692990917 is an apocalyptic number.

It is an amenable number.

6692990917 is a deficient number, since it is larger than the sum of its proper divisors (1).

6692990917 is an equidigital number, since it uses as much as digits as its factorization.

6692990917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 58.

The square root of 6692990917 is about 81810.7017266079. The cubic root of 6692990917 is about 1884.5460111650.

The spelling of 6692990917 in words is "six billion, six hundred ninety-two million, nine hundred ninety thousand, nine hundred seventeen".