20852433339 has 16 divisors (see below), whose sum is σ = 28019289600. Its totient is φ = 13793937696.

The previous prime is 20852433311. The next prime is 20852433353. The reversal of 20852433339 is 93333425802.

It is a happy number.

It is not a de Polignac number, because 20852433339 - 2¹¹ = 20852431291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20852433339.

It is not an unprimeable number, because it can be changed into a prime (20852433389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206697 + ... + 290565.

It is an arithmetic number, because the mean of its divisors is an integer number (1751205600).

Almost surely, 2^20852433339 is an apocalyptic number.

20852433339 is a deficient number, since it is larger than the sum of its proper divisors (7166856261).

20852433339 is a wasteful number, since it uses less digits than its factorization.

20852433339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84514.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 20852433339 in words is "twenty billion, eight hundred fifty-two million, four hundred thirty-three thousand, three hundred thirty-nine".