11280018432 has 176 divisors, whose sum is σ = 33221532672. Its totient is φ = 3384606720.

The previous prime is 11280018419. The next prime is 11280018443. The reversal of 11280018432 is 23481008211.

It is a self number, because there is not a number n which added to its sum of digits gives 11280018432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196457 + ... + 1205847.

Almost surely, 2^11280018432 is an apocalyptic number.

11280018432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11280018432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16610766336).

11280018432 is an abundant number, since it is smaller than the sum of its proper divisors (21941514240).

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

11280018432 is a wasteful number, since it uses less digits than its factorization.

11280018432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454 (or 9436 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 11280018432 in words is "eleven billion, two hundred eighty million, eighteen thousand, four hundred thirty-two".