26890868911269 has 64 divisors (see below), whose sum is σ = 40045746419712. Its totient is φ = 15914016518400.

The previous prime is 26890868911261. The next prime is 26890868911337. The reversal of 26890868911269 is 96211986809862.

It is not a de Polignac number, because 26890868911269 - 2³ = 26890868911261 is a prime.

It is a super-2 number, since 2×26890868911269² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26890868911269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890868911261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 146048464 + ... + 146232470.

It is an arithmetic number, because the mean of its divisors is an integer number (625714787808).

Almost surely, 2^{26890868911269} is an apocalyptic number.

It is an amenable number.

26890868911269 is a deficient number, since it is larger than the sum of its proper divisors (13154877508443).

26890868911269 is a wasteful number, since it uses less digits than its factorization.

26890868911269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184666.

The product of its (nonzero) digits is 322486272, while the sum is 75.

The spelling of 26890868911269 in words is "twenty-six trillion, eight hundred ninety billion, eight hundred sixty-eight million, nine hundred eleven thousand, two hundred sixty-nine".