26259140860 has 48 divisors (see below), whose sum is σ = 57047139072. Its totient is φ = 10142668800.

The previous prime is 26259140851. The next prime is 26259140909. The reversal of 26259140860 is 6804195262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239884 + ... + 331756.

It is an arithmetic number, because the mean of its divisors is an integer number (1188482064).

Almost surely, 2^26259140860 is an apocalyptic number.

26259140860 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 26259140860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28523569536).

26259140860 is an abundant number, since it is smaller than the sum of its proper divisors (30787998212).

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

26259140860 is a wasteful number, since it uses less digits than its factorization.

26259140860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92374 (or 92372 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 26259140860 in words is "twenty-six billion, two hundred fifty-nine million, one hundred forty thousand, eight hundred sixty".