20039142872 has 32 divisors (see below), whose sum is σ = 44101593120. Its totient is φ = 8356089600.

The previous prime is 20039142869. The next prime is 20039142881. The reversal of 20039142872 is 27824193002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4833629 + ... + 4837772.

It is an arithmetic number, because the mean of its divisors is an integer number (1378174785).

Almost surely, 2^20039142872 is an apocalyptic number.

It is an amenable number.

20039142872 is an abundant number, since it is smaller than the sum of its proper divisors (24062450248).

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

20039142872 is a wasteful number, since it uses less digits than its factorization.

20039142872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671451 (or 9671447 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20039142872 in words is "twenty billion, thirty-nine million, one hundred forty-two thousand, eight hundred seventy-two".