12594858864 has 120 divisors (see below), whose sum is σ = 38184587280. Its totient is φ = 3566610432.

The previous prime is 12594858841. The next prime is 12594858883. The reversal of 12594858864 is 46885849521.

It is a junction number, because it is equal to n+sod(n) for n = 12594858798 and 12594858807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242082 + ... + 289470.

It is an arithmetic number, because the mean of its divisors is an integer number (318204894).

Almost surely, 2^12594858864 is an apocalyptic number.

12594858864 is a gapful number since it is divisible by the number (14) 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 12594858864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19092293640).

12594858864 is an abundant number, since it is smaller than the sum of its proper divisors (25589728416).

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

12594858864 is a wasteful number, since it uses less digits than its factorization.

12594858864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47527 (or 47514 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 60.

The spelling of 12594858864 in words is "twelve billion, five hundred ninety-four million, eight hundred fifty-eight thousand, eight hundred sixty-four".