12142894836 has 12 divisors (see below), whose sum is σ = 28333421312. Its totient is φ = 4047631608.

The previous prime is 12142894807. The next prime is 12142894867. The reversal of 12142894836 is 63849824121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505953940 + ... + 505953963.

Almost surely, 2^12142894836 is an apocalyptic number.

It is an amenable number.

12142894836 is an abundant number, since it is smaller than the sum of its proper divisors (16190526476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12142894836 is a wasteful number, since it uses less digits than its factorization.

12142894836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011907910 (or 1011907908 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The spelling of 12142894836 in words is "twelve billion, one hundred forty-two million, eight hundred ninety-four thousand, eight hundred thirty-six".