2691936413 has 2 divisors, whose sum is σ = 2691936414. Its totient is φ = 2691936412.

The previous prime is 2691936407. The next prime is 2691936433. The reversal of 2691936413 is 3146391962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2646279364 + 45657049 = 51442^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2691936413 - 2⁸ = 2691936157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2691936433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345968206 + 1345968207.

It is an arithmetic number, because the mean of its divisors is an integer number (1345968207).

Almost surely, 2^2691936413 is an apocalyptic number.

It is an amenable number.

2691936413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691936413 is an equidigital number, since it uses as much as digits as its factorization.

2691936413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 2691936413 is about 51883.8743059922. The cubic root of 2691936413 is about 1391.0890509386.

The spelling of 2691936413 in words is "two billion, six hundred ninety-one million, nine hundred thirty-six thousand, four hundred thirteen".