12313639436 has 18 divisors (see below), whose sum is σ = 25067052108. Its totient is φ = 5277273960.

The previous prime is 12313639397. The next prime is 12313639439. The reversal of 12313639436 is 63493631321.

It is a junction number, because it is equal to n+sod(n) for n = 12313639393 and 12313639402.

It is not an unprimeable number, because it can be changed into a prime (12313639439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31412150 + ... + 31412541.

It is an arithmetic number, because the mean of its divisors is an integer number (1392614006).

Almost surely, 2^12313639436 is an apocalyptic number.

It is an amenable number.

12313639436 is an abundant number, since it is smaller than the sum of its proper divisors (12753412672).

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

12313639436 is a wasteful number, since it uses less digits than its factorization.

12313639436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62824709 (or 62824700 counting only the distinct ones).

The product of its digits is 209952, while the sum is 41.

The spelling of 12313639436 in words is "twelve billion, three hundred thirteen million, six hundred thirty-nine thousand, four hundred thirty-six".