26686982199 has 16 divisors (see below), whose sum is σ = 36415361664. Its totient is φ = 17375080800.

The previous prime is 26686982159. The next prime is 26686982207. The reversal of 26686982199 is 99128968662.

It is not a de Polignac number, because 26686982199 - 2¹² = 26686978103 is a prime.

It is a super-4 number, since 4×26686982199⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26686982159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443484 + ... + 1461854.

It is an arithmetic number, because the mean of its divisors is an integer number (2275960104).

Almost surely, 2^26686982199 is an apocalyptic number.

26686982199 is a deficient number, since it is larger than the sum of its proper divisors (9728379465).

26686982199 is a wasteful number, since it uses less digits than its factorization.

26686982199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29678.

The product of its digits is 40310784, while the sum is 66.

The spelling of 26686982199 in words is "twenty-six billion, six hundred eighty-six million, nine hundred eighty-two thousand, one hundred ninety-nine".