26855542295520 has 192 divisors, whose sum is σ = 86774930049024. Its totient is φ = 6977400442880.

The previous prime is 26855542295497. The next prime is 26855542295579. The reversal of 26855542295520 is 2559224555862.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13703929 + ... + 15540551.

It is an arithmetic number, because the mean of its divisors is an integer number (451952760672).

Almost surely, 2^{26855542295520} is an apocalyptic number.

26855542295520 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 26855542295520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43387465024512).

26855542295520 is an abundant number, since it is smaller than the sum of its proper divisors (59919387753504).

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

26855542295520 is a wasteful number, since it uses less digits than its factorization.

26855542295520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837425 (or 1837417 counting only the distinct ones).

The product of its (nonzero) digits is 86400000, while the sum is 60.

The spelling of 26855542295520 in words is "twenty-six trillion, eight hundred fifty-five billion, five hundred forty-two million, two hundred ninety-five thousand, five hundred twenty".