12986807998 has 8 divisors (see below), whose sum is σ = 20327177808. Its totient is φ = 6211082064.

The previous prime is 12986807993. The next prime is 12986808049. The reversal of 12986807998 is 89970868921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12986807993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141160911 + ... + 141161002.

It is an arithmetic number, because the mean of its divisors is an integer number (2540897226).

Almost surely, 2^12986807998 is an apocalyptic number.

12986807998 is a deficient number, since it is larger than the sum of its proper divisors (7340369810).

12986807998 is a wasteful number, since it uses less digits than its factorization.

12986807998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282321938.

The product of its (nonzero) digits is 31352832, while the sum is 67.

The spelling of 12986807998 in words is "twelve billion, nine hundred eighty-six million, eight hundred seven thousand, nine hundred ninety-eight".