26814892689 has 12 divisors (see below), whose sum is σ = 41712055476. Its totient is φ = 16501472352.

The previous prime is 26814892661. The next prime is 26814892729. The reversal of 26814892689 is 98629841862.

It can be written as a sum of positive squares in 2 ways, for example, as 11671129089 + 15143763600 = 108033^2 + 123060^2 .

It is not a de Polignac number, because 26814892689 - 2⁷ = 26814892561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26814892619) 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 11 ways as a sum of consecutive naturals, for example, 114593442 + ... + 114593675.

It is an arithmetic number, because the mean of its divisors is an integer number (3476004623).

Almost surely, 2^26814892689 is an apocalyptic number.

It is an amenable number.

26814892689 is a deficient number, since it is larger than the sum of its proper divisors (14897162787).

26814892689 is a wasteful number, since it uses less digits than its factorization.

26814892689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229187136 (or 229187133 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The spelling of 26814892689 in words is "twenty-six billion, eight hundred fourteen million, eight hundred ninety-two thousand, six hundred eighty-nine".