12845409570 has 128 divisors (see below), whose sum is σ = 39237696000. Its totient is φ = 2929360896.

The previous prime is 12845409527. The next prime is 12845409571. The reversal of 12845409570 is 7590454821.

12845409570 is a `hidden beast` number, since 1 + 28 + 4 + 54 + 0 + 9 + 570 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12845409571) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 841042 + ... + 856178.

It is an arithmetic number, because the mean of its divisors is an integer number (306544500).

Almost surely, 2^12845409570 is an apocalyptic number.

12845409570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12845409570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19618848000).

12845409570 is an abundant number, since it is smaller than the sum of its proper divisors (26392286430).

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

12845409570 is a wasteful number, since it uses less digits than its factorization.

12845409570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15609 (or 15603 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 12845409570 in words is "twelve billion, eight hundred forty-five million, four hundred nine thousand, five hundred seventy".