12369515808 has 48 divisors (see below), whose sum is σ = 34967673216. Its totient is φ = 3806004480.

The previous prime is 12369515803. The next prime is 12369515867. The reversal of 12369515808 is 80851596321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12369515801) 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, 4954488 + ... + 4956983.

It is an arithmetic number, because the mean of its divisors is an integer number (728493192).

Almost surely, 2^12369515808 is an apocalyptic number.

It is an amenable number.

12369515808 is an abundant number, since it is smaller than the sum of its proper divisors (22598157408).

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

12369515808 is a wasteful number, since it uses less digits than its factorization.

12369515808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911497 (or 9911489 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 12369515808 in words is "twelve billion, three hundred sixty-nine million, five hundred fifteen thousand, eight hundred eight".