26271436340 has 96 divisors (see below), whose sum is σ = 58185921024. Its totient is φ = 9950653440.

The previous prime is 26271436339. The next prime is 26271436343. The reversal of 26271436340 is 4363417262.

It is a junction number, because it is equal to n+sod(n) for n = 26271436294 and 26271436303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26271436343) 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, 16595189 + ... + 16596771.

It is an arithmetic number, because the mean of its divisors is an integer number (606103344).

Almost surely, 2^26271436340 is an apocalyptic number.

26271436340 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 26271436340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29092960512).

26271436340 is an abundant number, since it is smaller than the sum of its proper divisors (31914484684).

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

26271436340 is a wasteful number, since it uses less digits than its factorization.

26271436340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 26271436340 in words is "twenty-six billion, two hundred seventy-one million, four hundred thirty-six thousand, three hundred forty".