26276664287 has 2 divisors, whose sum is σ = 26276664288. Its totient is φ = 26276664286.

The previous prime is 26276664257. The next prime is 26276664313. The reversal of 26276664287 is 78246667262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26276664287 - 2²² = 26272469983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26276664217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138332143 + 13138332144.

It is an arithmetic number, because the mean of its divisors is an integer number (13138332144).

Almost surely, 2^26276664287 is an apocalyptic number.

26276664287 is a deficient number, since it is larger than the sum of its proper divisors (1).

26276664287 is an equidigital number, since it uses as much as digits as its factorization.

26276664287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 56.

The spelling of 26276664287 in words is "twenty-six billion, two hundred seventy-six million, six hundred sixty-four thousand, two hundred eighty-seven".