12641420352 has 112 divisors (see below), whose sum is σ = 36767073024. Its totient is φ = 3801408000.

The previous prime is 12641420263. The next prime is 12641420369. The reversal of 12641420352 is 25302414621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253827 + ... + 299517.

Almost surely, 2^12641420352 is an apocalyptic number.

12641420352 is a gapful number since it is divisible by the number (12) 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 12641420352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18383536512).

12641420352 is an abundant number, since it is smaller than the sum of its proper divisors (24125652672).

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

12641420352 is a wasteful number, since it uses less digits than its factorization.

12641420352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45848 (or 45838 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12641420352 its reverse (25302414621), we get a palindrome (37943834973).

The spelling of 12641420352 in words is "twelve billion, six hundred forty-one million, four hundred twenty thousand, three hundred fifty-two".