26864259648 has 56 divisors (see below), whose sum is σ = 71289440352. Its totient is φ = 8928159744.

The previous prime is 26864259529. The next prime is 26864259679. The reversal of 26864259648 is 84695246862.

It is a super-2 number, since 2×26864259648² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26864259591 and 26864259600.

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, 142890 + ... + 272297.

Almost surely, 2^26864259648 is an apocalyptic number.

It is an amenable number.

26864259648 is an abundant number, since it is smaller than the sum of its proper divisors (44425180704).

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

26864259648 is a wasteful number, since it uses less digits than its factorization.

26864259648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415539 (or 415529 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 60.

The spelling of 26864259648 in words is "twenty-six billion, eight hundred sixty-four million, two hundred fifty-nine thousand, six hundred forty-eight".