26375125261 has 2 divisors, whose sum is σ = 26375125262. Its totient is φ = 26375125260.

The previous prime is 26375125247. The next prime is 26375125277. The reversal of 26375125261 is 16252157362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22126562500 + 4248562761 = 148750^2 + 65181^2 .

It is a cyclic number.

It is not a de Polignac number, because 26375125261 - 2¹¹ = 26375123213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26375125241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13187562630 + 13187562631.

It is an arithmetic number, because the mean of its divisors is an integer number (13187562631).

Almost surely, 2^26375125261 is an apocalyptic number.

It is an amenable number.

26375125261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26375125261 is an equidigital number, since it uses as much as digits as its factorization.

26375125261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The spelling of 26375125261 in words is "twenty-six billion, three hundred seventy-five million, one hundred twenty-five thousand, two hundred sixty-one".