12047697816 has 192 divisors, whose sum is σ = 38708928000. Its totient is φ = 3089399040.

The previous prime is 12047697797. The next prime is 12047697833. The reversal of 12047697816 is 61879674021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1016050 + ... + 1027838.

It is an arithmetic number, because the mean of its divisors is an integer number (201609000).

Almost surely, 2^12047697816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12047697816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19354464000).

12047697816 is an abundant number, since it is smaller than the sum of its proper divisors (26661230184).

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

12047697816 is a wasteful number, since it uses less digits than its factorization.

12047697816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11902 (or 11891 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 12047697816 in words is "twelve billion, forty-seven million, six hundred ninety-seven thousand, eight hundred sixteen".