26984270251 has 2 divisors, whose sum is σ = 26984270252. Its totient is φ = 26984270250.

The previous prime is 26984270179. The next prime is 26984270273. The reversal of 26984270251 is 15207248962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26984270251 is a prime.

It is not a weakly prime, because it can be changed into another prime (26984276251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13492135125 + 13492135126.

It is an arithmetic number, because the mean of its divisors is an integer number (13492135126).

Almost surely, 2^26984270251 is an apocalyptic number.

26984270251 is a deficient number, since it is larger than the sum of its proper divisors (1).

26984270251 is an equidigital number, since it uses as much as digits as its factorization.

26984270251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 26984270251 in words is "twenty-six billion, nine hundred eighty-four million, two hundred seventy thousand, two hundred fifty-one".