2691944933 has 2 divisors, whose sum is σ = 2691944934. Its totient is φ = 2691944932.

The previous prime is 2691944891. The next prime is 2691944989. The reversal of 2691944933 is 3394491962.

2691944933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2112965089 + 578979844 = 45967^2 + 24062^2 .

It is a cyclic number.

It is not a de Polignac number, because 2691944933 - 2¹⁴ = 2691928549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2691944993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345972466 + 1345972467.

It is an arithmetic number, because the mean of its divisors is an integer number (1345972467).

Almost surely, 2^2691944933 is an apocalyptic number.

It is an amenable number.

2691944933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691944933 is an equidigital number, since it uses as much as digits as its factorization.

2691944933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The square root of 2691944933 is about 51883.9564123632. The cubic root of 2691944933 is about 1391.0905185396.

The spelling of 2691944933 in words is "two billion, six hundred ninety-one million, nine hundred forty-four thousand, nine hundred thirty-three".