22854251491 has 2 divisors, whose sum is σ = 22854251492. Its totient is φ = 22854251490.

The previous prime is 22854251377. The next prime is 22854251561. The reversal of 22854251491 is 19415245822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22854251491 - 2⁷ = 22854251363 is a prime.

It is a super-2 number, since 2×22854251491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22854251891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11427125745 + 11427125746.

It is an arithmetic number, because the mean of its divisors is an integer number (11427125746).

Almost surely, 2^22854251491 is an apocalyptic number.

22854251491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22854251491 is an equidigital number, since it uses as much as digits as its factorization.

22854251491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 43.

The spelling of 22854251491 in words is "twenty-two billion, eight hundred fifty-four million, two hundred fifty-one thousand, four hundred ninety-one".