26963883856 has 120 divisors (see below), whose sum is σ = 66345040104. Its totient is φ = 10520616960.

The previous prime is 26963883853. The next prime is 26963883883. The reversal of 26963883856 is 65838836962.

It can be written as a sum of positive squares in 4 ways, for example, as 389667600 + 26574216256 = 19740^2 + 163016^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26963883853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725896 + ... + 762136.

Almost surely, 2^26963883856 is an apocalyptic number.

26963883856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26963883856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33172520052).

26963883856 is an abundant number, since it is smaller than the sum of its proper divisors (39381156248).

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

26963883856 is a wasteful number, since it uses less digits than its factorization.

26963883856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36349 (or 36336 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 64.

The spelling of 26963883856 in words is "twenty-six billion, nine hundred sixty-three million, eight hundred eighty-three thousand, eight hundred fifty-six".