26009509232 has 80 divisors (see below), whose sum is σ = 58373263872. Its totient is φ = 10996826880.

The previous prime is 26009509177. The next prime is 26009509243. The reversal of 26009509232 is 23290590062.

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, 2533133 + ... + 2543379.

Almost surely, 2^26009509232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26009509232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29186631936).

26009509232 is an abundant number, since it is smaller than the sum of its proper divisors (32363754640).

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

26009509232 is a wasteful number, since it uses less digits than its factorization.

26009509232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10566 (or 10560 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 26009509232 in words is "twenty-six billion, nine million, five hundred nine thousand, two hundred thirty-two".