12377878642 has 8 divisors (see below), whose sum is σ = 18574722432. Its totient is φ = 6186304500.

The previous prime is 12377878609. The next prime is 12377878673. The reversal of 12377878642 is 24687877321.

12377878642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311534 + ... + 1320937.

It is an arithmetic number, because the mean of its divisors is an integer number (2321840304).

Almost surely, 2^12377878642 is an apocalyptic number.

12377878642 is a deficient number, since it is larger than the sum of its proper divisors (6196843790).

12377878642 is a wasteful number, since it uses less digits than its factorization.

12377878642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634824.

The product of its digits is 6322176, while the sum is 55.

The spelling of 12377878642 in words is "twelve billion, three hundred seventy-seven million, eight hundred seventy-eight thousand, six hundred forty-two".