12984398736 has 40 divisors (see below), whose sum is σ = 33548593824. Its totient is φ = 4327415040.

The previous prime is 12984398731. The next prime is 12984398743. The reversal of 12984398736 is 63789348921.

It is a super-2 number, since 2×12984398736² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12984398736.

It is not an unprimeable number, because it can be changed into a prime (12984398731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325651 + ... + 363341.

Almost surely, 2^12984398736 is an apocalyptic number.

12984398736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12984398736 is an abundant number, since it is smaller than the sum of its proper divisors (20564195088).

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

12984398736 is a wasteful number, since it uses less digits than its factorization.

12984398736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44879 (or 44873 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The spelling of 12984398736 in words is "twelve billion, nine hundred eighty-four million, three hundred ninety-eight thousand, seven hundred thirty-six".