11471489420 has 24 divisors (see below), whose sum is σ = 24449684784. Its totient is φ = 4520108736.

The previous prime is 11471489411. The next prime is 11471489437. The reversal of 11471489420 is 2498417411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4279067 + ... + 4281746.

It is an arithmetic number, because the mean of its divisors is an integer number (1018736866).

Almost surely, 2^11471489420 is an apocalyptic number.

11471489420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11471489420 is an abundant number, since it is smaller than the sum of its proper divisors (12978195364).

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

11471489420 is a wasteful number, since it uses less digits than its factorization.

11471489420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8560889 (or 8560887 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 11471489420 in words is "eleven billion, four hundred seventy-one million, four hundred eighty-nine thousand, four hundred twenty".