11772901128 has 16 divisors (see below), whose sum is σ = 29432252880. Its totient is φ = 3924300368.

The previous prime is 11772901117. The next prime is 11772901169. The reversal of 11772901128 is 82110927711.

11772901128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245268750 + ... + 245268797.

It is an arithmetic number, because the mean of its divisors is an integer number (1839515805).

Almost surely, 2^11772901128 is an apocalyptic number.

It is an amenable number.

11772901128 is an abundant number, since it is smaller than the sum of its proper divisors (17659351752).

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

11772901128 is a wasteful number, since it uses less digits than its factorization.

11772901128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490537556 (or 490537552 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 39.

The spelling of 11772901128 in words is "eleven billion, seven hundred seventy-two million, nine hundred one thousand, one hundred twenty-eight".