12978767599 has 8 divisors (see below), whose sum is σ = 14833861920. Its totient is φ = 11123919456.

The previous prime is 12978767579. The next prime is 12978767621. The reversal of 12978767599 is 99576787921.

12978767599 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 a cyclic number.

It is not a de Polignac number, because 12978767599 - 2⁵ = 12978767567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12978767539) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 70257 + ... + 175765.

It is an arithmetic number, because the mean of its divisors is an integer number (1854232740).

Almost surely, 2^12978767599 is an apocalyptic number.

12978767599 is a deficient number, since it is larger than the sum of its proper divisors (1855094321).

12978767599 is a wasteful number, since it uses less digits than its factorization.

12978767599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123089.

The product of its digits is 120022560, while the sum is 70.

The spelling of 12978767599 in words is "twelve billion, nine hundred seventy-eight million, seven hundred sixty-seven thousand, five hundred ninety-nine".