26998635943 has 2 divisors, whose sum is σ = 26998635944. Its totient is φ = 26998635942.

The previous prime is 26998635913. The next prime is 26998635953. The reversal of 26998635943 is 34953689962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26998635943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26998635913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13499317971 + 13499317972.

It is an arithmetic number, because the mean of its divisors is an integer number (13499317972).

Almost surely, 2^26998635943 is an apocalyptic number.

26998635943 is a deficient number, since it is larger than the sum of its proper divisors (1).

26998635943 is an equidigital number, since it uses as much as digits as its factorization.

26998635943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75582720, while the sum is 64.

The spelling of 26998635943 in words is "twenty-six billion, nine hundred ninety-eight million, six hundred thirty-five thousand, nine hundred forty-three".