26876197591 has 2 divisors, whose sum is σ = 26876197592. Its totient is φ = 26876197590.

The previous prime is 26876197553. The next prime is 26876197637. The reversal of 26876197591 is 19579167862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26876197591 - 2⁷ = 26876197463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26876197501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13438098795 + 13438098796.

It is an arithmetic number, because the mean of its divisors is an integer number (13438098796).

Almost surely, 2^26876197591 is an apocalyptic number.

26876197591 is a deficient number, since it is larger than the sum of its proper divisors (1).

26876197591 is an equidigital number, since it uses as much as digits as its factorization.

26876197591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 61.

The spelling of 26876197591 in words is "twenty-six billion, eight hundred seventy-six million, one hundred ninety-seven thousand, five hundred ninety-one".