21339056359 has 8 divisors (see below), whose sum is σ = 21461141520. Its totient is φ = 21217017600.

The previous prime is 21339056317. The next prime is 21339056371. The reversal of 21339056359 is 95365093312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21339056359 - 2¹⁵ = 21339023591 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 (21339056309) 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, 1384407 + ... + 1399735.

It is an arithmetic number, because the mean of its divisors is an integer number (2682642690).

Almost surely, 2^21339056359 is an apocalyptic number.

21339056359 is a deficient number, since it is larger than the sum of its proper divisors (122085161).

21339056359 is a wasteful number, since it uses less digits than its factorization.

21339056359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23201.

The product of its (nonzero) digits is 656100, while the sum is 46.

The spelling of 21339056359 in words is "twenty-one billion, three hundred thirty-nine million, fifty-six thousand, three hundred fifty-nine".