26611276513 has 2 divisors, whose sum is σ = 26611276514. Its totient is φ = 26611276512.

The previous prime is 26611276453. The next prime is 26611276547. The reversal of 26611276513 is 31567211662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26481703824 + 129572689 = 162732^2 + 11383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26611276513 is a prime.

It is a super-3 number, since 3×26611276513³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (26611676513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13305638256 + 13305638257.

It is an arithmetic number, because the mean of its divisors is an integer number (13305638257).

Almost surely, 2^26611276513 is an apocalyptic number.

It is an amenable number.

26611276513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26611276513 is an equidigital number, since it uses as much as digits as its factorization.

26611276513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The spelling of 26611276513 in words is "twenty-six billion, six hundred eleven million, two hundred seventy-six thousand, five hundred thirteen".