26631451247 has 2 divisors, whose sum is σ = 26631451248. Its totient is φ = 26631451246.

The previous prime is 26631451181. The next prime is 26631451267. The reversal of 26631451247 is 74215413662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26631451247 - 2¹⁸ = 26631189103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26631451267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13315725623 + 13315725624.

It is an arithmetic number, because the mean of its divisors is an integer number (13315725624).

Almost surely, 2^26631451247 is an apocalyptic number.

26631451247 is a deficient number, since it is larger than the sum of its proper divisors (1).

26631451247 is an equidigital number, since it uses as much as digits as its factorization.

26631451247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The spelling of 26631451247 in words is "twenty-six billion, six hundred thirty-one million, four hundred fifty-one thousand, two hundred forty-seven".