11397420928 has 32 divisors (see below), whose sum is σ = 22819950000. Its totient is φ = 5670061056.

The previous prime is 11397420917. The next prime is 11397420949. The reversal of 11397420928 is 82902479311.

It is a happy number.

11397420928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 198253 + ... + 249196.

Almost surely, 2^11397420928 is an apocalyptic number.

It is an amenable number.

11397420928 is an abundant number, since it is smaller than the sum of its proper divisors (11422529072).

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

11397420928 is an equidigital number, since it uses as much as digits as its factorization.

11397420928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447662 (or 447650 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 11397420928 in words is "eleven billion, three hundred ninety-seven million, four hundred twenty thousand, nine hundred twenty-eight".