11905079128 has 64 divisors (see below), whose sum is σ = 24545664000. Its totient is φ = 5388083712.

The previous prime is 11905079113. The next prime is 11905079129. The reversal of 11905079128 is 82197050911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11905079129) 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, 5204401 + ... + 5206687.

It is an arithmetic number, because the mean of its divisors is an integer number (383526000).

Almost surely, 2^11905079128 is an apocalyptic number.

It is an amenable number.

11905079128 is an abundant number, since it is smaller than the sum of its proper divisors (12640584872).

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

11905079128 is a wasteful number, since it uses less digits than its factorization.

11905079128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 11905079128 in words is "eleven billion, nine hundred five million, seventy-nine thousand, one hundred twenty-eight".