20128127090 has 16 divisors (see below), whose sum is σ = 38137504320. Its totient is φ = 7627500720.

The previous prime is 20128127009. The next prime is 20128127093. The reversal of 20128127090 is 9072182102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20128127093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52968566 + ... + 52968945.

It is an arithmetic number, because the mean of its divisors is an integer number (2383594020).

Almost surely, 2^20128127090 is an apocalyptic number.

20128127090 is a deficient number, since it is larger than the sum of its proper divisors (18009377230).

20128127090 is a wasteful number, since it uses less digits than its factorization.

20128127090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105937537.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 20128127090 in words is "twenty billion, one hundred twenty-eight million, one hundred twenty-seven thousand, ninety".