21833513496 has 128 divisors (see below), whose sum is σ = 61852896000. Its totient is φ = 7134759936.

The previous prime is 21833513447. The next prime is 21833513503. The reversal of 21833513496 is 69431533812.

21833513496 is a `hidden beast` number, since 2 + 18 + 33 + 513 + 4 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2236995 + ... + 2246733.

It is an arithmetic number, because the mean of its divisors is an integer number (483225750).

Almost surely, 2^21833513496 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 21833513496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30926448000).

21833513496 is an abundant number, since it is smaller than the sum of its proper divisors (40019382504).

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

21833513496 is a wasteful number, since it uses less digits than its factorization.

21833513496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958 (or 9948 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 21833513496 in words is "twenty-one billion, eight hundred thirty-three million, five hundred thirteen thousand, four hundred ninety-six".