26686982207 has 2 divisors, whose sum is σ = 26686982208. Its totient is φ = 26686982206.

The previous prime is 26686982159. The next prime is 26686982233. The reversal of 26686982207 is 70228968662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26686982207 - 2¹⁶ = 26686916671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26686982807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13343491103 + 13343491104.

It is an arithmetic number, because the mean of its divisors is an integer number (13343491104).

Almost surely, 2^26686982207 is an apocalyptic number.

26686982207 is a deficient number, since it is larger than the sum of its proper divisors (1).

26686982207 is an equidigital number, since it uses as much as digits as its factorization.

26686982207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 26686982207 in words is "twenty-six billion, six hundred eighty-six million, nine hundred eighty-two thousand, two hundred seven".