12342585820 has 96 divisors (see below), whose sum is σ = 29176096320. Its totient is φ = 4358246400.

The previous prime is 12342585817. The next prime is 12342585821. The reversal of 12342585820 is 2858524321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342585821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643002 + ... + 661918.

It is an arithmetic number, because the mean of its divisors is an integer number (303917670).

Almost surely, 2^12342585820 is an apocalyptic number.

12342585820 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 12342585820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14588048160).

12342585820 is an abundant number, since it is smaller than the sum of its proper divisors (16833510500).

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

12342585820 is a wasteful number, since it uses less digits than its factorization.

12342585820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19063 (or 19061 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 12342585820 in words is "twelve billion, three hundred forty-two million, five hundred eighty-five thousand, eight hundred twenty".