20782959342 has 16 divisors (see below), whose sum is σ = 41618081232. Its totient is φ = 6918959360.

The previous prime is 20782959319. The next prime is 20782959343. The reversal of 20782959342 is 24395928702.

It is a super-2 number, since 2×20782959342² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20782959343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168259 + ... + 2177822.

It is an arithmetic number, because the mean of its divisors is an integer number (2601130077).

Almost surely, 2^20782959342 is an apocalyptic number.

20782959342 is an abundant number, since it is smaller than the sum of its proper divisors (20835121890).

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

20782959342 is a wasteful number, since it uses less digits than its factorization.

20782959342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346883.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 20782959342 in words is "twenty billion, seven hundred eighty-two million, nine hundred fifty-nine thousand, three hundred forty-two".