12186860340 has 48 divisors (see below), whose sum is σ = 34239719808. Its totient is φ = 3238733184.

The previous prime is 12186860299. The next prime is 12186860381. The reversal of 12186860340 is 4306868121.

It is an interprime number because it is at equal distance from previous prime (12186860299) and next prime (12186860381).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329032 + ... + 364191.

It is an arithmetic number, because the mean of its divisors is an integer number (713327496).

Almost surely, 2^12186860340 is an apocalyptic number.

12186860340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12186860340 is an abundant number, since it is smaller than the sum of its proper divisors (22052859468).

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

12186860340 is a wasteful number, since it uses less digits than its factorization.

12186860340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693528 (or 693526 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 12186860340 in words is "twelve billion, one hundred eighty-six million, eight hundred sixty thousand, three hundred forty".