26425787291 has 2 divisors, whose sum is σ = 26425787292. Its totient is φ = 26425787290.

The previous prime is 26425787251. The next prime is 26425787293. The reversal of 26425787291 is 19278752462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26425787291 - 2¹⁴ = 26425770907 is a prime.

It is a Sophie Germain prime.

Together with 26425787293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26425787293) 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, 13212893645 + 13212893646.

It is an arithmetic number, because the mean of its divisors is an integer number (13212893646).

Almost surely, 2^26425787291 is an apocalyptic number.

26425787291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26425787291 is an equidigital number, since it uses as much as digits as its factorization.

26425787291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 53.

The spelling of 26425787291 in words is "twenty-six billion, four hundred twenty-five million, seven hundred eighty-seven thousand, two hundred ninety-one".