2162742991 has 2 divisors, whose sum is σ = 2162742992. Its totient is φ = 2162742990.

The previous prime is 2162742979. The next prime is 2162743031. The reversal of 2162742991 is 1992472612.

2162742991 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 is a cyclic number.

It is not a de Polignac number, because 2162742991 - 2⁷ = 2162742863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162742971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081371495 + 1081371496.

It is an arithmetic number, because the mean of its divisors is an integer number (1081371496).

Almost surely, 2^2162742991 is an apocalyptic number.

2162742991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162742991 is an equidigital number, since it uses as much as digits as its factorization.

2162742991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 2162742991 is about 46505.3006763745. The cubic root of 2162742991 is about 1293.2077672775.

The spelling of 2162742991 in words is "two billion, one hundred sixty-two million, seven hundred forty-two thousand, nine hundred ninety-one".