26407855291 has 2 divisors, whose sum is σ = 26407855292. Its totient is φ = 26407855290.

The previous prime is 26407855289. The next prime is 26407855349. The reversal of 26407855291 is 19255870462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26407855291 - 2¹ = 26407855289 is a prime.

Together with 26407855289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26407852291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13203927645 + 13203927646.

It is an arithmetic number, because the mean of its divisors is an integer number (13203927646).

Almost surely, 2^26407855291 is an apocalyptic number.

26407855291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26407855291 is an equidigital number, since it uses as much as digits as its factorization.

26407855291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 26407855291 in words is "twenty-six billion, four hundred seven million, eight hundred fifty-five thousand, two hundred ninety-one".