12140678506 has 24 divisors (see below), whose sum is σ = 20049654240. Its totient is φ = 5509507080.

The previous prime is 12140678491. The next prime is 12140678507. The reversal of 12140678506 is 60587604121.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12140678507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109275 + ... + 190321.

It is an arithmetic number, because the mean of its divisors is an integer number (835402260).

Almost surely, 2^12140678506 is an apocalyptic number.

12140678506 is a deficient number, since it is larger than the sum of its proper divisors (7908975734).

12140678506 is a wasteful number, since it uses less digits than its factorization.

12140678506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81690 (or 81679 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12140678506 in words is "twelve billion, one hundred forty million, six hundred seventy-eight thousand, five hundred six".