11420428712 has 32 divisors (see below), whose sum is σ = 26697107520. Its totient is φ = 4449517440.

The previous prime is 11420428709. The next prime is 11420428757. The reversal of 11420428712 is 21782402411.

11420428712 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 7 ways as a sum of consecutive naturals, for example, 9269213 + ... + 9270444.

It is an arithmetic number, because the mean of its divisors is an integer number (834284610).

Almost surely, 2^11420428712 is an apocalyptic number.

It is an amenable number.

11420428712 is an abundant number, since it is smaller than the sum of its proper divisors (15276678808).

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

11420428712 is a wasteful number, since it uses less digits than its factorization.

11420428712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18539681 (or 18539677 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The spelling of 11420428712 in words is "eleven billion, four hundred twenty million, four hundred twenty-eight thousand, seven hundred twelve".