26485451791 has 2 divisors, whose sum is σ = 26485451792. Its totient is φ = 26485451790.

The previous prime is 26485451779. The next prime is 26485451813. The reversal of 26485451791 is 19715458462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26485451791 - 2²³ = 26477063183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26485451191) 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, 13242725895 + 13242725896.

It is an arithmetic number, because the mean of its divisors is an integer number (13242725896).

Almost surely, 2^26485451791 is an apocalyptic number.

26485451791 is a deficient number, since it is larger than the sum of its proper divisors (1).

26485451791 is an equidigital number, since it uses as much as digits as its factorization.

26485451791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The spelling of 26485451791 in words is "twenty-six billion, four hundred eighty-five million, four hundred fifty-one thousand, seven hundred ninety-one".