2538110891 has 2 divisors, whose sum is σ = 2538110892. Its totient is φ = 2538110890.

The previous prime is 2538110879. The next prime is 2538110893. The reversal of 2538110891 is 1980118352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2538110891 - 2²² = 2533916587 is a prime.

Together with 2538110893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2538110893) 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, 1269055445 + 1269055446.

It is an arithmetic number, because the mean of its divisors is an integer number (1269055446).

Almost surely, 2^2538110891 is an apocalyptic number.

2538110891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538110891 is an equidigital number, since it uses as much as digits as its factorization.

2538110891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 2538110891 is about 50379.6674363775. The cubic root of 2538110891 is about 1364.0706490053.

The spelling of 2538110891 in words is "two billion, five hundred thirty-eight million, one hundred ten thousand, eight hundred ninety-one".