2690192977 has 2 divisors, whose sum is σ = 2690192978. Its totient is φ = 2690192976.

The previous prime is 2690192971. The next prime is 2690192993. The reversal of 2690192977 is 7792910962.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1807865361 + 882327616 = 42519^2 + 29704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690192977 - 2⁷ = 2690192849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2690192971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345096488 + 1345096489.

It is an arithmetic number, because the mean of its divisors is an integer number (1345096489).

Almost surely, 2^2690192977 is an apocalyptic number.

It is an amenable number.

2690192977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690192977 is an equidigital number, since it uses as much as digits as its factorization.

2690192977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 2690192977 is about 51867.0702565703. The cubic root of 2690192977 is about 1390.7886725585.

The spelling of 2690192977 in words is "two billion, six hundred ninety million, one hundred ninety-two thousand, nine hundred seventy-seven".