12046840640 has 224 divisors, whose sum is σ = 30930128640. Its totient is φ = 4458561536.

The previous prime is 12046840607. The next prime is 12046840669. The reversal of 12046840640 is 4604864021.

It is a self number, because there is not a number n which added to its sum of digits gives 12046840640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34716947 + ... + 34717293.

Almost surely, 2^12046840640 is an apocalyptic number.

12046840640 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 12046840640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15465064320).

12046840640 is an abundant number, since it is smaller than the sum of its proper divisors (18883288000).

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

12046840640 is a wasteful number, since it uses less digits than its factorization.

12046840640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 12046840640 in words is "twelve billion, forty-six million, eight hundred forty thousand, six hundred forty".