11428457328 has 60 divisors (see below), whose sum is σ = 32032461448. Its totient is φ = 3803690880.

The previous prime is 11428457323. The next prime is 11428457333. The reversal of 11428457328 is 82375482411.

11428457328 is a `hidden beast` number, since 11 + 42 + 8 + 4 + 573 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (11428457323) and next prime (11428457333).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428457323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35151 + ... + 155217.

Almost surely, 2^11428457328 is an apocalyptic number.

11428457328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11428457328 is an abundant number, since it is smaller than the sum of its proper divisors (20604004120).

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

11428457328 is a wasteful number, since it uses less digits than its factorization.

11428457328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120742 (or 120733 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 11428457328 in words is "eleven billion, four hundred twenty-eight million, four hundred fifty-seven thousand, three hundred twenty-eight".