12346647936 has 128 divisors (see below), whose sum is σ = 39685800960. Its totient is φ = 3320094720.

The previous prime is 12346647893. The next prime is 12346647947. The reversal of 12346647936 is 63974664321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 89400 + ... + 180791.

It is an arithmetic number, because the mean of its divisors is an integer number (310045320).

Almost surely, 2^12346647936 is an apocalyptic number.

12346647936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12346647936 is an abundant number, since it is smaller than the sum of its proper divisors (27339153024).

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

12346647936 is a wasteful number, since it uses less digits than its factorization.

12346647936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270232 (or 270220 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 51.

The spelling of 12346647936 in words is "twelve billion, three hundred forty-six million, six hundred forty-seven thousand, nine hundred thirty-six".