26712266868 has 144 divisors (see below), whose sum is σ = 79799050240. Its totient is φ = 7372814400.

The previous prime is 26712266857. The next prime is 26712266897. The reversal of 26712266868 is 86866221762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4926663 + ... + 4932081.

Almost surely, 2^26712266868 is an apocalyptic number.

26712266868 is a gapful number since it is divisible by the number (28) 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 26712266868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39899525120).

26712266868 is an abundant number, since it is smaller than the sum of its proper divisors (53086783372).

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

26712266868 is a wasteful number, since it uses less digits than its factorization.

26712266868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098 (or 6093 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 26712266868 in words is "twenty-six billion, seven hundred twelve million, two hundred sixty-six thousand, eight hundred sixty-eight".