10128990084 has 12 divisors (see below), whose sum is σ = 23634310224. Its totient is φ = 3376330024.

The previous prime is 10128990083. The next prime is 10128990089. The reversal of 10128990084 is 48009982101.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (10128990083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422041242 + ... + 422041265.

It is an arithmetic number, because the mean of its divisors is an integer number (1969525852).

Almost surely, 2^10128990084 is an apocalyptic number.

It is an amenable number.

10128990084 is an abundant number, since it is smaller than the sum of its proper divisors (13505320140).

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

10128990084 is a wasteful number, since it uses less digits than its factorization.

10128990084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844082514 (or 844082512 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 10128990084 in words is "ten billion, one hundred twenty-eight million, nine hundred ninety thousand, eighty-four".