26858816029 has 2 divisors, whose sum is σ = 26858816030. Its totient is φ = 26858816028.

The previous prime is 26858816021. The next prime is 26858816063. The reversal of 26858816029 is 92061885862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25560655129 + 1298160900 = 159877^2 + 36030^2 .

It is a cyclic number.

It is not a de Polignac number, because 26858816029 - 2³ = 26858816021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26858816021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13429408014 + 13429408015.

It is an arithmetic number, because the mean of its divisors is an integer number (13429408015).

Almost surely, 2^26858816029 is an apocalyptic number.

It is an amenable number.

26858816029 is a deficient number, since it is larger than the sum of its proper divisors (1).

26858816029 is an equidigital number, since it uses as much as digits as its factorization.

26858816029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 26858816029 in words is "twenty-six billion, eight hundred fifty-eight million, eight hundred sixteen thousand, twenty-nine".