12347049880 has 32 divisors (see below), whose sum is σ = 30306396240. Its totient is φ = 4489836160.

The previous prime is 12347049877. The next prime is 12347049899. The reversal of 12347049880 is 8894074321.

It is a self number, because there is not a number n which added to its sum of digits gives 12347049880.

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 7 ways as a sum of consecutive naturals, for example, 14030299 + ... + 14031178.

Almost surely, 2^12347049880 is an apocalyptic number.

12347049880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12347049880 is an abundant number, since it is smaller than the sum of its proper divisors (17959346360).

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

12347049880 is a wasteful number, since it uses less digits than its factorization.

12347049880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061499 (or 28061495 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 12347049880 in words is "twelve billion, three hundred forty-seven million, forty-nine thousand, eight hundred eighty".