11447428416 has 28 divisors (see below), whose sum is σ = 30287988192. Its totient is φ = 3815809408.

The previous prime is 11447428393. The next prime is 11447428451. The reversal of 11447428416 is 61482474411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29810820 + ... + 29811203.

It is an arithmetic number, because the mean of its divisors is an integer number (1081713864).

Almost surely, 2^11447428416 is an apocalyptic number.

11447428416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11447428416 is an abundant number, since it is smaller than the sum of its proper divisors (18840559776).

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

11447428416 is an equidigital number, since it uses as much as digits as its factorization.

11447428416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59622038 (or 59622028 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The spelling of 11447428416 in words is "eleven billion, four hundred forty-seven million, four hundred twenty-eight thousand, four hundred sixteen".