20128607468 has 12 divisors (see below), whose sum is σ = 35974532832. Its totient is φ = 9850169520.

The previous prime is 20128607437. The next prime is 20128607519. The reversal of 20128607468 is 86470682102.

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, 53533343 + ... + 53533718.

It is an arithmetic number, because the mean of its divisors is an integer number (2997877736).

Almost surely, 2^20128607468 is an apocalyptic number.

It is an amenable number.

20128607468 is a deficient number, since it is larger than the sum of its proper divisors (15845925364).

20128607468 is a wasteful number, since it uses less digits than its factorization.

20128607468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107067112 (or 107067110 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 20128607468 in words is "twenty billion, one hundred twenty-eight million, six hundred seven thousand, four hundred sixty-eight".