12581207622 has 12 divisors (see below), whose sum is σ = 27259283220. Its totient is φ = 4193735868.

The previous prime is 12581207591. The next prime is 12581207623. The reversal of 12581207622 is 22670218521.

It is a happy number.

12581207622 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 1 + 20 + 7 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12581207623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349477972 + ... + 349478007.

It is an arithmetic number, because the mean of its divisors is an integer number (2271606935).

Almost surely, 2^12581207622 is an apocalyptic number.

12581207622 is an abundant number, since it is smaller than the sum of its proper divisors (14678075598).

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

12581207622 is a wasteful number, since it uses less digits than its factorization.

12581207622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698955987 (or 698955984 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 12581207622 in words is "twelve billion, five hundred eighty-one million, two hundred seven thousand, six hundred twenty-two".