12985691308 has 12 divisors (see below), whose sum is σ = 23458023232. Its totient is φ = 6283398960.

The previous prime is 12985691293. The next prime is 12985691309. The reversal of 12985691308 is 80319658921.

It is not an unprimeable number, because it can be changed into a prime (12985691309) 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, 52361535 + ... + 52361782.

Almost surely, 2^12985691308 is an apocalyptic number.

It is an amenable number.

12985691308 is a deficient number, since it is larger than the sum of its proper divisors (10472331924).

12985691308 is a wasteful number, since it uses less digits than its factorization.

12985691308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104723352 (or 104723350 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 12985691308 in words is "twelve billion, nine hundred eighty-five million, six hundred ninety-one thousand, three hundred eight".