26249243863 has 2 divisors, whose sum is σ = 26249243864. Its totient is φ = 26249243862.

The previous prime is 26249243857. The next prime is 26249243927. The reversal of 26249243863 is 36834294262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26249243863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26249243843) 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, 13124621931 + 13124621932.

It is an arithmetic number, because the mean of its divisors is an integer number (13124621932).

Almost surely, 2^26249243863 is an apocalyptic number.

26249243863 is a deficient number, since it is larger than the sum of its proper divisors (1).

26249243863 is an equidigital number, since it uses as much as digits as its factorization.

26249243863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 49.

The spelling of 26249243863 in words is "twenty-six billion, two hundred forty-nine million, two hundred forty-three thousand, eight hundred sixty-three".