12581145393 has 8 divisors (see below), whose sum is σ = 17657748000. Its totient is φ = 7945986528.

The previous prime is 12581145389. The next prime is 12581145407. The reversal of 12581145393 is 39354118521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12581145393 - 2² = 12581145389 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12581145373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110360868 + ... + 110360981.

It is an arithmetic number, because the mean of its divisors is an integer number (2207218500).

Almost surely, 2^12581145393 is an apocalyptic number.

It is an amenable number.

12581145393 is a deficient number, since it is larger than the sum of its proper divisors (5076602607).

12581145393 is a wasteful number, since it uses less digits than its factorization.

12581145393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220721871.

The product of its digits is 129600, while the sum is 42.

The spelling of 12581145393 in words is "twelve billion, five hundred eighty-one million, one hundred forty-five thousand, three hundred ninety-three".