26312056129 has 2 divisors, whose sum is σ = 26312056130. Its totient is φ = 26312056128.

The previous prime is 26312056103. The next prime is 26312056151. The reversal of 26312056129 is 92165021362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26095171600 + 216884529 = 161540^2 + 14727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26312056129 is a prime.

It is not a weakly prime, because it can be changed into another prime (26312050129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13156028064 + 13156028065.

It is an arithmetic number, because the mean of its divisors is an integer number (13156028065).

Almost surely, 2^26312056129 is an apocalyptic number.

It is an amenable number.

26312056129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26312056129 is an equidigital number, since it uses as much as digits as its factorization.

26312056129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 26312056129 in words is "twenty-six billion, three hundred twelve million, fifty-six thousand, one hundred twenty-nine".