12878044634 has 32 divisors (see below), whose sum is σ = 23926336896. Its totient is φ = 5062150080.

The previous prime is 12878044601. The next prime is 12878044639. The reversal of 12878044634 is 43644087821.

It is not an unprimeable number, because it can be changed into a prime (12878044639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196772 + ... + 253919.

It is an arithmetic number, because the mean of its divisors is an integer number (747698028).

Almost surely, 2^12878044634 is an apocalyptic number.

12878044634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12878044634 is a deficient number, since it is larger than the sum of its proper divisors (11048292262).

12878044634 is a wasteful number, since it uses less digits than its factorization.

12878044634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450870.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 12878044634 in words is "twelve billion, eight hundred seventy-eight million, forty-four thousand, six hundred thirty-four".