26840395008 has 576 divisors, whose sum is σ = 96071270400. Its totient is φ = 7226081280.

The previous prime is 26840394989. The next prime is 26840395051. The reversal of 26840395008 is 80059304862.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99041913 + ... + 99042183.

It is an arithmetic number, because the mean of its divisors is an integer number (166790400).

Almost surely, 2^26840395008 is an apocalyptic number.

26840395008 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 26840395008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48035635200).

26840395008 is an abundant number, since it is smaller than the sum of its proper divisors (69230875392).

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

26840395008 is a wasteful number, since it uses less digits than its factorization.

26840395008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 26840395008 in words is "twenty-six billion, eight hundred forty million, three hundred ninety-five thousand, eight".