26626308240 has 480 divisors, whose sum is σ = 99900391680. Its totient is φ = 5739761664.

The previous prime is 26626308173. The next prime is 26626308263. The reversal of 26626308240 is 4280362662.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 169594242 + ... + 169594398.

It is an arithmetic number, because the mean of its divisors is an integer number (208125816).

Almost surely, 2^26626308240 is an apocalyptic number.

26626308240 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 26626308240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49950195840).

26626308240 is an abundant number, since it is smaller than the sum of its proper divisors (73274083440).

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

26626308240 is a wasteful number, since it uses less digits than its factorization.

26626308240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 26626308240 in words is "twenty-six billion, six hundred twenty-six million, three hundred eight thousand, two hundred forty".