20381118476 has 12 divisors (see below), whose sum is σ = 35708484840. Its totient is φ = 10178694240.

The previous prime is 20381118451. The next prime is 20381118479. The reversal of 20381118476 is 67481118302.

It is not an unprimeable number, because it can be changed into a prime (20381118479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2962385 + ... + 2969256.

It is an arithmetic number, because the mean of its divisors is an integer number (2975707070).

Almost surely, 2^20381118476 is an apocalyptic number.

It is an amenable number.

20381118476 is a deficient number, since it is larger than the sum of its proper divisors (15327366364).

20381118476 is a wasteful number, since it uses less digits than its factorization.

20381118476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932504 (or 5932502 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 20381118476 in words is "twenty billion, three hundred eighty-one million, one hundred eighteen thousand, four hundred seventy-six".