12485722320 has 200 divisors, whose sum is σ = 45647569440. Its totient is φ = 3154256640.

The previous prime is 12485722273. The next prime is 12485722357. The reversal of 12485722320 is 2322758421.

12485722320 is a `hidden beast` number, since 1 + 2 + 48 + 572 + 23 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72415 + ... + 173825.

Almost surely, 2^12485722320 is an apocalyptic number.

12485722320 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 12485722320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22823784720).

12485722320 is an abundant number, since it is smaller than the sum of its proper divisors (33161847120).

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

12485722320 is a wasteful number, since it uses less digits than its factorization.

12485722320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101455 (or 101440 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 12485722320 in words is "twelve billion, four hundred eighty-five million, seven hundred twenty-two thousand, three hundred twenty".