2691935497 has 2 divisors, whose sum is σ = 2691935498. Its totient is φ = 2691935496.

The previous prime is 2691935471. The next prime is 2691935503. The reversal of 2691935497 is 7945391962.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2466214921 + 225720576 = 49661^2 + 15024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2691935497 - 2¹¹ = 2691933449 is a prime.

It is a super-3 number, since 3×2691935497³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2691935417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345967748 + 1345967749.

It is an arithmetic number, because the mean of its divisors is an integer number (1345967749).

Almost surely, 2^2691935497 is an apocalyptic number.

It is an amenable number.

2691935497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691935497 is an equidigital number, since it uses as much as digits as its factorization.

2691935497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 2691935497 is about 51883.8654785859. The cubic root of 2691935497 is about 1391.0888931540.

The spelling of 2691935497 in words is "two billion, six hundred ninety-one million, nine hundred thirty-five thousand, four hundred ninety-seven".