12899609352 has 96 divisors (see below), whose sum is σ = 42028833600. Its totient is φ = 3491620992.

The previous prime is 12899609347. The next prime is 12899609377. The reversal of 12899609352 is 25390699821.

It is a happy number.

12899609352 is a `hidden beast` number, since 1 + 28 + 9 + 9 + 609 + 3 + 5 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663963 + ... + 683114.

It is an arithmetic number, because the mean of its divisors is an integer number (437800350).

Almost surely, 2^12899609352 is an apocalyptic number.

12899609352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12899609352 is an abundant number, since it is smaller than the sum of its proper divisors (29129224248).

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

12899609352 is a wasteful number, since it uses less digits than its factorization.

12899609352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347115 (or 1347108 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 12899609352 in words is "twelve billion, eight hundred ninety-nine million, six hundred nine thousand, three hundred fifty-two".