26927144129 has 2 divisors, whose sum is σ = 26927144130. Its totient is φ = 26927144128.

The previous prime is 26927144117. The next prime is 26927144137. The reversal of 26927144129 is 92144172962.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19278767104 + 7648377025 = 138848^2 + 87455^2 .

It is a cyclic number.

It is not a de Polignac number, because 26927144129 - 2²⁴ = 26910366913 is a prime.

It is not a weakly prime, because it can be changed into another prime (26927144159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13463572064 + 13463572065.

It is an arithmetic number, because the mean of its divisors is an integer number (13463572065).

Almost surely, 2^26927144129 is an apocalyptic number.

It is an amenable number.

26927144129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26927144129 is an equidigital number, since it uses as much as digits as its factorization.

26927144129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The spelling of 26927144129 in words is "twenty-six billion, nine hundred twenty-seven million, one hundred forty-four thousand, one hundred twenty-nine".