12986043194 has 16 divisors (see below), whose sum is σ = 19850158080. Its totient is φ = 6369880560.

The previous prime is 12986043173. The next prime is 12986043209. The reversal of 12986043194 is 49134068921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92234 + ... + 185685.

It is an arithmetic number, because the mean of its divisors is an integer number (1240634880).

Almost surely, 2^12986043194 is an apocalyptic number.

12986043194 is a deficient number, since it is larger than the sum of its proper divisors (6864114886).

12986043194 is a wasteful number, since it uses less digits than its factorization.

12986043194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278365.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 12986043194 in words is "twelve billion, nine hundred eighty-six million, forty-three thousand, one hundred ninety-four".