26264143691 has 2 divisors, whose sum is σ = 26264143692. Its totient is φ = 26264143690.

The previous prime is 26264143673. The next prime is 26264143747. The reversal of 26264143691 is 19634146262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26264143691 - 2⁶ = 26264143627 is a prime.

It is not a weakly prime, because it can be changed into another prime (26264143291) 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, 13132071845 + 13132071846.

It is an arithmetic number, because the mean of its divisors is an integer number (13132071846).

Almost surely, 2^26264143691 is an apocalyptic number.

26264143691 is a deficient number, since it is larger than the sum of its proper divisors (1).

26264143691 is an equidigital number, since it uses as much as digits as its factorization.

26264143691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The spelling of 26264143691 in words is "twenty-six billion, two hundred sixty-four million, one hundred forty-three thousand, six hundred ninety-one".