2690437669 has 2 divisors, whose sum is σ = 2690437670. Its totient is φ = 2690437668.

The previous prime is 2690437657. The next prime is 2690437681. The reversal of 2690437669 is 9667340962.

It is a balanced prime because it is at equal distance from previous prime (2690437657) and next prime (2690437681).

It can be written as a sum of positive squares in only one way, i.e., 2137952644 + 552485025 = 46238^2 + 23505^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690437669 - 2²⁹ = 2153566757 is a prime.

It is a super-2 number, since 2×2690437669² = 14476909701548307122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690437609) 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, 1345218834 + 1345218835.

It is an arithmetic number, because the mean of its divisors is an integer number (1345218835).

Almost surely, 2^2690437669 is an apocalyptic number.

It is an amenable number.

2690437669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690437669 is an equidigital number, since it uses as much as digits as its factorization.

2690437669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The square root of 2690437669 is about 51869.4290406208. The cubic root of 2690437669 is about 1390.8308386221.

The spelling of 2690437669 in words is "two billion, six hundred ninety million, four hundred thirty-seven thousand, six hundred sixty-nine".