26899808147 has 2 divisors, whose sum is σ = 26899808148. Its totient is φ = 26899808146.

The previous prime is 26899808123. The next prime is 26899808149. The reversal of 26899808147 is 74180899862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26899808147 - 2⁶ = 26899808083 is a prime.

Together with 26899808149, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26899808147.

It is not a weakly prime, because it can be changed into another prime (26899808149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13449904073 + 13449904074.

It is an arithmetic number, because the mean of its divisors is an integer number (13449904074).

Almost surely, 2^26899808147 is an apocalyptic number.

26899808147 is a deficient number, since it is larger than the sum of its proper divisors (1).

26899808147 is an equidigital number, since it uses as much as digits as its factorization.

26899808147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 62.

The spelling of 26899808147 in words is "twenty-six billion, eight hundred ninety-nine million, eight hundred eight thousand, one hundred forty-seven".