20137906882 has 8 divisors (see below), whose sum is σ = 30338768700. Its totient is φ = 10024983984.

The previous prime is 20137906879. The next prime is 20137906891. The reversal of 20137906882 is 28860973102.

It can be written as a sum of positive squares in 2 ways, for example, as 20113196041 + 24710841 = 141821^2 + 4971^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21984157 + ... + 21985072.

Almost surely, 2^20137906882 is an apocalyptic number.

20137906882 is a deficient number, since it is larger than the sum of its proper divisors (10200861818).

20137906882 is a wasteful number, since it uses less digits than its factorization.

20137906882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43969460.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 20137906882 in words is "twenty billion, one hundred thirty-seven million, nine hundred six thousand, eight hundred eighty-two".