26908431232 has 64 divisors (see below), whose sum is σ = 57193860240. Its totient is φ = 12565995520.

The previous prime is 26908431229. The next prime is 26908431233. The reversal of 26908431232 is 23213480962.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26908431233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237858 + ... + 332254.

Almost surely, 2^26908431232 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 26908431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28596930120).

26908431232 is an abundant number, since it is smaller than the sum of its proper divisors (30285429008).

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

26908431232 is a wasteful number, since it uses less digits than its factorization.

26908431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94559 (or 94547 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 26908431232 in words is "twenty-six billion, nine hundred eight million, four hundred thirty-one thousand, two hundred thirty-two".