12089429280 has 384 divisors, whose sum is σ = 44412157440. Its totient is φ = 3065610240.

The previous prime is 12089429263. The next prime is 12089429357. The reversal of 12089429280 is 8292498021.

It is a happy number.

12089429280 is a `hidden beast` number, since 120 + 89 + 429 + 28 + 0 = 666.

It is a super-2 number, since 2×12089429280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27919944 + ... + 27920376.

It is an arithmetic number, because the mean of its divisors is an integer number (115656660).

Almost surely, 2^12089429280 is an apocalyptic number.

12089429280 is a gapful number since it is divisible by the number (10) 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 12089429280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22206078720).

12089429280 is an abundant number, since it is smaller than the sum of its proper divisors (32322728160).

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

12089429280 is a wasteful number, since it uses less digits than its factorization.

12089429280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 12089429280 in words is "twelve billion, eighty-nine million, four hundred twenty-nine thousand, two hundred eighty".