12842977678 has 16 divisors (see below), whose sum is σ = 20028882384. Its totient is φ = 6171359040.

The previous prime is 12842977663. The next prime is 12842977691. The reversal of 12842977678 is 87677924821.

It is a congruent number.

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, 1163325 + ... + 1174312.

It is an arithmetic number, because the mean of its divisors is an integer number (1251805149).

Almost surely, 2^12842977678 is an apocalyptic number.

12842977678 is a deficient number, since it is larger than the sum of its proper divisors (7185904706).

12842977678 is a wasteful number, since it uses less digits than its factorization.

12842977678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337747.

The product of its digits is 18966528, while the sum is 61.

The spelling of 12842977678 in words is "twelve billion, eight hundred forty-two million, nine hundred seventy-seven thousand, six hundred seventy-eight".