26551906879 has 2 divisors, whose sum is σ = 26551906880. Its totient is φ = 26551906878.

The previous prime is 26551906861. The next prime is 26551906897. The reversal of 26551906879 is 97860915562.

Together with next prime (26551906897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (26551906861) and next prime (26551906897).

It is a cyclic number.

It is not a de Polignac number, because 26551906879 - 2⁵ = 26551906847 is a prime.

It is a super-2 number, since 2×26551906879² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26551906279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13275953439 + 13275953440.

It is an arithmetic number, because the mean of its divisors is an integer number (13275953440).

Almost surely, 2^26551906879 is an apocalyptic number.

26551906879 is a deficient number, since it is larger than the sum of its proper divisors (1).

26551906879 is an equidigital number, since it uses as much as digits as its factorization.

26551906879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 26551906879 in words is "twenty-six billion, five hundred fifty-one million, nine hundred six thousand, eight hundred seventy-nine".