26494869960 has 320 divisors, whose sum is σ = 100952913600. Its totient is φ = 6178374144.

The previous prime is 26494869893. The next prime is 26494870009. The reversal of 26494869960 is 6996849462.

26494869960 is a `hidden beast` number, since 2 + 6 + 4 + 9 + 486 + 99 + 60 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 783727 + ... + 816833.

It is an arithmetic number, because the mean of its divisors is an integer number (315477855).

Almost surely, 2^26494869960 is an apocalyptic number.

26494869960 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 26494869960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50476456800).

26494869960 is an abundant number, since it is smaller than the sum of its proper divisors (74458043640).

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

26494869960 is a wasteful number, since it uses less digits than its factorization.

26494869960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33162 (or 33149 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 26494869960 in words is "twenty-six billion, four hundred ninety-four million, eight hundred sixty-nine thousand, nine hundred sixty".