26116628869 has 32 divisors (see below), whose sum is σ = 28464906240. Its totient is φ = 23890204800.

The previous prime is 26116628851. The next prime is 26116628897. The reversal of 26116628869 is 96882661162.

It is a cyclic number.

It is not a de Polignac number, because 26116628869 - 2¹¹ = 26116626821 is a prime.

It is a super-2 number, since 2×26116628869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26116628819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34318449 + ... + 34319209.

It is an arithmetic number, because the mean of its divisors is an integer number (889528320).

Almost surely, 2^26116628869 is an apocalyptic number.

It is an amenable number.

26116628869 is a deficient number, since it is larger than the sum of its proper divisors (2348277371).

26116628869 is a wasteful number, since it uses less digits than its factorization.

26116628869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its digits is 2985984, while the sum is 55.

The spelling of 26116628869 in words is "twenty-six billion, one hundred sixteen million, six hundred twenty-eight thousand, eight hundred sixty-nine".