2691936433 has 2 divisors, whose sum is σ = 2691936434. Its totient is φ = 2691936432.

The previous prime is 2691936413. The next prime is 2691936479. The reversal of 2691936433 is 3346391962.

It is an a-pointer prime, because the next prime (2691936479) can be obtained adding 2691936433 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2425365504 + 266570929 = 49248^2 + 16327^2 .

It is a cyclic number.

It is not a de Polignac number, because 2691936433 - 2¹³ = 2691928241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2691936413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345968216 + 1345968217.

It is an arithmetic number, because the mean of its divisors is an integer number (1345968217).

Almost surely, 2^2691936433 is an apocalyptic number.

It is an amenable number.

2691936433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691936433 is an equidigital number, since it uses as much as digits as its factorization.

2691936433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 46.

The square root of 2691936433 is about 51883.8744987303. The cubic root of 2691936433 is about 1391.0890543836.

The spelling of 2691936433 in words is "two billion, six hundred ninety-one million, nine hundred thirty-six thousand, four hundred thirty-three".