26770110649 has 2 divisors, whose sum is σ = 26770110650. Its totient is φ = 26770110648.

The previous prime is 26770110641. The next prime is 26770110677. The reversal of 26770110649 is 94601107762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19794520249 + 6975590400 = 140693^2 + 83520^2 .

It is a cyclic number.

It is not a de Polignac number, because 26770110649 - 2³ = 26770110641 is a prime.

It is not a weakly prime, because it can be changed into another prime (26770110641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13385055324 + 13385055325.

It is an arithmetic number, because the mean of its divisors is an integer number (13385055325).

Almost surely, 2^26770110649 is an apocalyptic number.

It is an amenable number.

26770110649 is a deficient number, since it is larger than the sum of its proper divisors (1).

26770110649 is an equidigital number, since it uses as much as digits as its factorization.

26770110649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 26770110649 in words is "twenty-six billion, seven hundred seventy million, one hundred ten thousand, six hundred forty-nine".