12697789216 has 192 divisors, whose sum is σ = 31213486080. Its totient is φ = 4966410240.

The previous prime is 12697789207. The next prime is 12697789267. The reversal of 12697789216 is 61298779621.

It is a super-2 number, since 2×12697789216² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9927265 + ... + 9928543.

It is an arithmetic number, because the mean of its divisors is an integer number (162570240).

Almost surely, 2^12697789216 is an apocalyptic number.

12697789216 is a gapful number since it is divisible by the number (16) 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 12697789216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15606743040).

12697789216 is an abundant number, since it is smaller than the sum of its proper divisors (18515696864).

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

12697789216 is a wasteful number, since it uses less digits than its factorization.

12697789216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1399 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 58.

The spelling of 12697789216 in words is "twelve billion, six hundred ninety-seven million, seven hundred eighty-nine thousand, two hundred sixteen".