20042917184 has 28 divisors (see below), whose sum is σ = 39919460928. Its totient is φ = 9984470400.

The previous prime is 20042917177. The next prime is 20042917189. The reversal of 20042917184 is 48171924002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042917189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560462 + ... + 595149.

Almost surely, 2^20042917184 is an apocalyptic number.

It is an amenable number.

20042917184 is a deficient number, since it is larger than the sum of its proper divisors (19876543744).

20042917184 is a wasteful number, since it uses less digits than its factorization.

20042917184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155894 (or 1155884 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 20042917184 in words is "twenty billion, forty-two million, nine hundred seventeen thousand, one hundred eighty-four".