20381836382 has 4 divisors (see below), whose sum is σ = 30572754576. Its totient is φ = 10190918190.

The previous prime is 20381836379. The next prime is 20381836439. The reversal of 20381836382 is 28363818302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5095459094 + ... + 5095459097.

It is an arithmetic number, because the mean of its divisors is an integer number (7643188644).

Almost surely, 2^20381836382 is an apocalyptic number.

20381836382 is a deficient number, since it is larger than the sum of its proper divisors (10190918194).

20381836382 is a wasteful number, since it uses less digits than its factorization.

20381836382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10190918193.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 20381836382 in words is "twenty billion, three hundred eighty-one million, eight hundred thirty-six thousand, three hundred eighty-two".