109090909128 has 64 divisors (see below), whose sum is σ = 276674443200. Its totient is φ = 35839964160.

The previous prime is 109090909093. The next prime is 109090909129. The reversal of 109090909128 is 821909090901.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (109090909129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586983 + ... + 750153.

It is an arithmetic number, because the mean of its divisors is an integer number (4323038175).

Almost surely, 2^109090909128 is an apocalyptic number.

It is an amenable number.

109090909128 is an abundant number, since it is smaller than the sum of its proper divisors (167583534072).

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

109090909128 is a wasteful number, since it uses less digits than its factorization.

109090909128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163582 (or 163578 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 48.

The spelling of 109090909128 in words is "one hundred nine billion, ninety million, nine hundred nine thousand, one hundred twenty-eight".