12502838678 has 16 divisors (see below), whose sum is σ = 20646893520. Its totient is φ = 5630968800.

The previous prime is 12502838671. The next prime is 12502838707. The reversal of 12502838678 is 87683820521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502838671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604533 + ... + 2609328.

It is an arithmetic number, because the mean of its divisors is an integer number (1290430845).

Almost surely, 2^12502838678 is an apocalyptic number.

12502838678 is a deficient number, since it is larger than the sum of its proper divisors (8144054842).

12502838678 is a wasteful number, since it uses less digits than its factorization.

12502838678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213983.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 12502838678 in words is "twelve billion, five hundred two million, eight hundred thirty-eight thousand, six hundred seventy-eight".