21596082931549 has 8 divisors (see below), whose sum is σ = 25532314796160. Its totient is φ = 17872620356976.

The previous prime is 21596082931523. The next prime is 21596082931567. The reversal of 21596082931549 is 94513928069512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21596082931549 - 2⁹ = 21596082931037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21596082631549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53192322289 + ... + 53192322694.

It is an arithmetic number, because the mean of its divisors is an integer number (3191539349520).

Almost surely, 2^{21596082931549} is an apocalyptic number.

21596082931549 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

21596082931549 is a deficient number, since it is larger than the sum of its proper divisors (3936231864611).

21596082931549 is a wasteful number, since it uses less digits than its factorization.

21596082931549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106384645019.

The product of its (nonzero) digits is 41990400, while the sum is 64.

The spelling of 21596082931549 in words is "twenty-one trillion, five hundred ninety-six billion, eighty-two million, nine hundred thirty-one thousand, five hundred forty-nine".