12867986790 has 24 divisors (see below), whose sum is σ = 33456765888. Its totient is φ = 3431463120.

The previous prime is 12867986777. The next prime is 12867986809. The reversal of 12867986790 is 9768976821.

It is a super-2 number, since 2×12867986790² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71488726 + ... + 71488905.

It is an arithmetic number, because the mean of its divisors is an integer number (1394031912).

Almost surely, 2^12867986790 is an apocalyptic number.

12867986790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12867986790 is an abundant number, since it is smaller than the sum of its proper divisors (20588779098).

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

12867986790 is a wasteful number, since it uses less digits than its factorization.

12867986790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142977644 (or 142977641 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 12867986790 in words is "twelve billion, eight hundred sixty-seven million, nine hundred eighty-six thousand, seven hundred ninety".