26171546412 has 144 divisors (see below), whose sum is σ = 67898589696. Its totient is φ = 7839849600.

The previous prime is 26171546351. The next prime is 26171546417. The reversal of 26171546412 is 21464517162.

It is not an unprimeable number, because it can be changed into a prime (26171546417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89322538 + ... + 89322830.

It is an arithmetic number, because the mean of its divisors is an integer number (471517984).

Almost surely, 2^26171546412 is an apocalyptic number.

26171546412 is a gapful number since it is divisible by the number (22) 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 26171546412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33949294848).

26171546412 is an abundant number, since it is smaller than the sum of its proper divisors (41727043284).

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

26171546412 is a wasteful number, since it uses less digits than its factorization.

26171546412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 807 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The spelling of 26171546412 in words is "twenty-six billion, one hundred seventy-one million, five hundred forty-six thousand, four hundred twelve".