12591783360 has 672 divisors, whose sum is σ = 50769438720. Its totient is φ = 2836684800.

The previous prime is 12591783317. The next prime is 12591783401. The reversal of 12591783360 is 6338719521.

12591783360 is a `hidden beast` number, since 125 + 91 + 7 + 83 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22051875 + ... + 22052445.

It is an arithmetic number, because the mean of its divisors is an integer number (75549760).

Almost surely, 2^12591783360 is an apocalyptic number.

12591783360 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 12591783360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25384719360).

12591783360 is an abundant number, since it is smaller than the sum of its proper divisors (38177655360).

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

12591783360 is a wasteful number, since it uses less digits than its factorization.

12591783360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 12591783360 in words is "twelve billion, five hundred ninety-one million, seven hundred eighty-three thousand, three hundred sixty".