26113275521 has 2 divisors, whose sum is σ = 26113275522. Its totient is φ = 26113275520.

The previous prime is 26113275481. The next prime is 26113275547. The reversal of 26113275521 is 12557231162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20205201025 + 5908074496 = 142145^2 + 76864^2 .

It is a cyclic number.

It is not a de Polignac number, because 26113275521 - 2³⁴ = 8933406337 is a prime.

It is not a weakly prime, because it can be changed into another prime (26119275521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13056637760 + 13056637761.

It is an arithmetic number, because the mean of its divisors is an integer number (13056637761).

Almost surely, 2^26113275521 is an apocalyptic number.

It is an amenable number.

26113275521 is a deficient number, since it is larger than the sum of its proper divisors (1).

26113275521 is an equidigital number, since it uses as much as digits as its factorization.

26113275521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The spelling of 26113275521 in words is "twenty-six billion, one hundred thirteen million, two hundred seventy-five thousand, five hundred twenty-one".