12388108446 has 24 divisors (see below), whose sum is σ = 30675316464. Its totient is φ = 3539459520.

The previous prime is 12388108429. The next prime is 12388108463. The reversal of 12388108446 is 64480188321.

12388108446 is a `hidden beast` number, since 1 + 23 + 88 + 108 + 446 = 666.

It is an interprime number because it is at equal distance from previous prime (12388108429) and next prime (12388108463).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49159035 + ... + 49159286.

It is an arithmetic number, because the mean of its divisors is an integer number (1278138186).

Almost surely, 2^12388108446 is an apocalyptic number.

12388108446 is an abundant number, since it is smaller than the sum of its proper divisors (18287208018).

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

12388108446 is a wasteful number, since it uses less digits than its factorization.

12388108446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98318336 (or 98318333 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 12388108446 in words is "twelve billion, three hundred eighty-eight million, one hundred eight thousand, four hundred forty-six".