2690864677 has 2 divisors, whose sum is σ = 2690864678. Its totient is φ = 2690864676.

The previous prime is 2690864629. The next prime is 2690864717. The reversal of 2690864677 is 7764680962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2621542401 + 69322276 = 51201^2 + 8326^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690864677 - 2⁷ = 2690864549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690864177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345432338 + 1345432339.

It is an arithmetic number, because the mean of its divisors is an integer number (1345432339).

Almost surely, 2^2690864677 is an apocalyptic number.

It is an amenable number.

2690864677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690864677 is an equidigital number, since it uses as much as digits as its factorization.

2690864677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The square root of 2690864677 is about 51873.5450591147. The cubic root of 2690864677 is about 1390.9044158056.

The spelling of 2690864677 in words is "two billion, six hundred ninety million, eight hundred sixty-four thousand, six hundred seventy-seven".