26979823589639 has 2 divisors, whose sum is σ = 26979823589640. Its totient is φ = 26979823589638.

The previous prime is 26979823589627. The next prime is 26979823589651. The reversal of 26979823589639 is 93698532897962.

It is a balanced prime because it is at equal distance from previous prime (26979823589627) and next prime (26979823589651).

It is a cyclic number.

It is not a de Polignac number, because 26979823589639 - 2⁴ = 26979823589623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26979823589339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13489911794819 + 13489911794820.

It is an arithmetic number, because the mean of its divisors is an integer number (13489911794820).

Almost surely, 2^{26979823589639} is an apocalyptic number.

26979823589639 is a deficient number, since it is larger than the sum of its proper divisors (1).

26979823589639 is an equidigital number, since it uses as much as digits as its factorization.

26979823589639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19046845440, while the sum is 86.

The spelling of 26979823589639 in words is "twenty-six trillion, nine hundred seventy-nine billion, eight hundred twenty-three million, five hundred eighty-nine thousand, six hundred thirty-nine".