12047909592 has 64 divisors (see below), whose sum is σ = 30935520000. Its totient is φ = 3907903104.

The previous prime is 12047909581. The next prime is 12047909593. The reversal of 12047909592 is 29590974021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047909593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255909 + ... + 299307.

It is an arithmetic number, because the mean of its divisors is an integer number (483367500).

Almost surely, 2^12047909592 is an apocalyptic number.

12047909592 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 12047909592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467760000).

12047909592 is an abundant number, since it is smaller than the sum of its proper divisors (18887610408).

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

12047909592 is a wasteful number, since it uses less digits than its factorization.

12047909592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43720 (or 43716 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 12047909592 in words is "twelve billion, forty-seven million, nine hundred nine thousand, five hundred ninety-two".