26890483228440 has 384 divisors, whose sum is σ = 92011657752000. Its totient is φ = 6242301628416.

The previous prime is 26890483228417. The next prime is 26890483228447. The reversal of 26890483228440 is 4482238409862.

It is a super-3 number, since 3×26890483228440³ (a number of 41 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890483228447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83488026 + ... + 83809494.

Almost surely, 2^{26890483228440} is an apocalyptic number.

26890483228440 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 26890483228440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46005828876000).

26890483228440 is an abundant number, since it is smaller than the sum of its proper divisors (65121174523560).

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

26890483228440 is a wasteful number, since it uses less digits than its factorization.

26890483228440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321611 (or 321564 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 60.

The spelling of 26890483228440 in words is "twenty-six trillion, eight hundred ninety billion, four hundred eighty-three million, two hundred twenty-eight thousand, four hundred forty".