26867063840 has 192 divisors, whose sum is σ = 69544500480. Its totient is φ = 9767976960.

The previous prime is 26867063813. The next prime is 26867063843. The reversal of 26867063840 is 4836076862.

It is not an unprimeable number, because it can be changed into a prime (26867063843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11485391 + ... + 11487729.

It is an arithmetic number, because the mean of its divisors is an integer number (362210940).

Almost surely, 2^26867063840 is an apocalyptic number.

26867063840 is a gapful number since it is divisible by the number (20) 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 26867063840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34772250240).

26867063840 is an abundant number, since it is smaller than the sum of its proper divisors (42677436640).

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

26867063840 is a wasteful number, since it uses less digits than its factorization.

26867063840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 26867063840 in words is "twenty-six billion, eight hundred sixty-seven million, sixty-three thousand, eight hundred forty".