12712380581 has 8 divisors (see below), whose sum is σ = 13475427264. Its totient is φ = 11951029440.

The previous prime is 12712380557. The next prime is 12712380691. The reversal of 12712380581 is 18508321721.

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

It is a cyclic number.

It is not a de Polignac number, because 12712380581 - 2⁶ = 12712380517 is a prime.

It is a super-2 number, since 2×12712380581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712380481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408425 + ... + 438446.

It is an arithmetic number, because the mean of its divisors is an integer number (1684428408).

Almost surely, 2^12712380581 is an apocalyptic number.

It is an amenable number.

12712380581 is a deficient number, since it is larger than the sum of its proper divisors (763046683).

12712380581 is an equidigital number, since it uses as much as digits as its factorization.

12712380581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847771.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 12712380581 in words is "twelve billion, seven hundred twelve million, three hundred eighty thousand, five hundred eighty-one".