12517649312 has 96 divisors (see below), whose sum is σ = 29682132480. Its totient is φ = 5076345600.

The previous prime is 12517649297. The next prime is 12517649317. The reversal of 12517649312 is 21394671521.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12517649312.

It is not an unprimeable number, because it can be changed into a prime (12517649317) 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, 6174443 + ... + 6176469.

It is an arithmetic number, because the mean of its divisors is an integer number (309188880).

Almost surely, 2^12517649312 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 12517649312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14841066240).

12517649312 is an abundant number, since it is smaller than the sum of its proper divisors (17164483168).

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

12517649312 is a wasteful number, since it uses less digits than its factorization.

12517649312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514 (or 3506 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The spelling of 12517649312 in words is "twelve billion, five hundred seventeen million, six hundred forty-nine thousand, three hundred twelve".