20862734168 has 48 divisors (see below), whose sum is σ = 39656689800. Its totient is φ = 10289462400.

The previous prime is 20862734161. The next prime is 20862734171. The reversal of 20862734168 is 86143726802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20862734161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34713068 + ... + 34713668.

Almost surely, 2^20862734168 is an apocalyptic number.

It is an amenable number.

20862734168 is a deficient number, since it is larger than the sum of its proper divisors (18793955632).

20862734168 is a wasteful number, since it uses less digits than its factorization.

20862734168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 20862734168 in words is "twenty billion, eight hundred sixty-two million, seven hundred thirty-four thousand, one hundred sixty-eight".