26261250887 has 2 divisors, whose sum is σ = 26261250888. Its totient is φ = 26261250886.

The previous prime is 26261250859. The next prime is 26261250889. The reversal of 26261250887 is 78805216262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26261250887 - 2¹⁶ = 26261185351 is a prime.

It is a super-3 number, since 3×26261250887³ (a number of 32 digits) contains 333 as substring.

Together with 26261250889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26261250889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130625443 + 13130625444.

It is an arithmetic number, because the mean of its divisors is an integer number (13130625444).

Almost surely, 2^26261250887 is an apocalyptic number.

26261250887 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261250887 is an equidigital number, since it uses as much as digits as its factorization.

26261250887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 26261250887 in words is "twenty-six billion, two hundred sixty-one million, two hundred fifty thousand, eight hundred eighty-seven".