20678383236 has 48 divisors (see below), whose sum is σ = 55337268224. Its totient is φ = 5887226016.

The previous prime is 20678383223. The next prime is 20678383237. The reversal of 20678383236 is 63238387602.

It is not an unprimeable number, because it can be changed into a prime (20678383237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411160 + ... + 458703.

Almost surely, 2^20678383236 is an apocalyptic number.

It is an amenable number.

20678383236 is an abundant number, since it is smaller than the sum of its proper divisors (34658884988).

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

20678383236 is a wasteful number, since it uses less digits than its factorization.

20678383236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870160 (or 870158 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 20678383236 in words is "twenty billion, six hundred seventy-eight million, three hundred eighty-three thousand, two hundred thirty-six".