26864846862 has 16 divisors (see below), whose sum is σ = 61405364352. Its totient is φ = 7675670520.

The previous prime is 26864846809. The next prime is 26864846881.

It is a happy number.

26864846862 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×26864846862² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26864846796 and 26864846805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319819564 + ... + 319819647.

It is an arithmetic number, because the mean of its divisors is an integer number (3837835272).

Almost surely, 2^26864846862 is an apocalyptic number.

26864846862 is an abundant number, since it is smaller than the sum of its proper divisors (34540517490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26864846862 is a wasteful number, since it uses less digits than its factorization.

26864846862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639639223.

The product of its digits is 42467328, while the sum is 60.

The spelling of 26864846862 in words is "twenty-six billion, eight hundred sixty-four million, eight hundred forty-six thousand, eight hundred sixty-two".