12349559936 has 64 divisors (see below), whose sum is σ = 28380300480. Its totient is φ = 5243163648.

The previous prime is 12349559923. The next prime is 12349559977. The reversal of 12349559936 is 63995594321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12349559936² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31466 + ... + 160278.

It is an arithmetic number, because the mean of its divisors is an integer number (443442195).

Almost surely, 2^12349559936 is an apocalyptic number.

12349559936 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 12349559936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14190150240).

12349559936 is an abundant number, since it is smaller than the sum of its proper divisors (16030740544).

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

12349559936 is a wasteful number, since it uses less digits than its factorization.

12349559936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128941 (or 128929 counting only the distinct ones).

The product of its digits is 7873200, while the sum is 56.

The spelling of 12349559936 in words is "twelve billion, three hundred forty-nine million, five hundred fifty-nine thousand, nine hundred thirty-six".