20131928264 has 32 divisors (see below), whose sum is σ = 43164947520. Its totient is φ = 8622949056.

The previous prime is 20131928251. The next prime is 20131928291. The reversal of 20131928264 is 46282913102.

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 in 7 ways as a sum of consecutive naturals, for example, 6674 + ... + 200769.

It is an arithmetic number, because the mean of its divisors is an integer number (1348904610).

Almost surely, 2^20131928264 is an apocalyptic number.

It is an amenable number.

20131928264 is an abundant number, since it is smaller than the sum of its proper divisors (23033019256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20131928264 is a wasteful number, since it uses less digits than its factorization.

20131928264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209189 (or 209185 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 20131928264 in words is "twenty billion, one hundred thirty-one million, nine hundred twenty-eight thousand, two hundred sixty-four".