2691428023 has 2 divisors, whose sum is σ = 2691428024. Its totient is φ = 2691428022.

The previous prime is 2691427873. The next prime is 2691428059. The reversal of 2691428023 is 3208241962.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2691428023 - 2²¹ = 2689330871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2691428923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345714011 + 1345714012.

It is an arithmetic number, because the mean of its divisors is an integer number (1345714012).

Almost surely, 2^2691428023 is an apocalyptic number.

2691428023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691428023 is an equidigital number, since it uses as much as digits as its factorization.

2691428023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2691428023 is about 51878.9747682045. The cubic root of 2691428023 is about 1391.0014733018.

Adding to 2691428023 its reverse (3208241962), we get a palindrome (5899669985).

The spelling of 2691428023 in words is "two billion, six hundred ninety-one million, four hundred twenty-eight thousand, twenty-three".