26945325568 has 80 divisors (see below), whose sum is σ = 61583290560. Its totient is φ = 11537842176.

The previous prime is 26945325529. The next prime is 26945325587. The reversal of 26945325568 is 86552354962.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5226480 + ... + 5231632.

It is an arithmetic number, because the mean of its divisors is an integer number (769791132).

Almost surely, 2^26945325568 is an apocalyptic number.

26945325568 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 26945325568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30791645280).

26945325568 is an abundant number, since it is smaller than the sum of its proper divisors (34637964992).

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

26945325568 is an equidigital number, since it uses as much as digits as its factorization.

26945325568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6637 (or 6621 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 55.

The spelling of 26945325568 in words is "twenty-six billion, nine hundred forty-five million, three hundred twenty-five thousand, five hundred sixty-eight".