12345859860 has 96 divisors (see below), whose sum is σ = 35469920640. Its totient is φ = 3206794752.

The previous prime is 12345859849. The next prime is 12345859873. The reversal of 12345859860 is 6895854321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955926 + ... + 968754.

It is an arithmetic number, because the mean of its divisors is an integer number (369478340).

Almost surely, 2^12345859860 is an apocalyptic number.

12345859860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12345859860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17734960320).

12345859860 is an abundant number, since it is smaller than the sum of its proper divisors (23124060780).

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

12345859860 is a wasteful number, since it uses less digits than its factorization.

12345859860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13257 (or 13255 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 12345859860 in words is "twelve billion, three hundred forty-five million, eight hundred fifty-nine thousand, eight hundred sixty".