20631934184 has 16 divisors (see below), whose sum is σ = 39932776320. Its totient is φ = 9983193840.

The previous prime is 20631934177. The next prime is 20631934201. The reversal of 20631934184 is 48143913602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41596394 + ... + 41596889.

It is an arithmetic number, because the mean of its divisors is an integer number (2495798520).

Almost surely, 2^20631934184 is an apocalyptic number.

It is an amenable number.

20631934184 is a deficient number, since it is larger than the sum of its proper divisors (19300842136).

20631934184 is a wasteful number, since it uses less digits than its factorization.

20631934184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83193320 (or 83193316 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 20631934184 in words is "twenty billion, six hundred thirty-one million, nine hundred thirty-four thousand, one hundred eighty-four".