12558012681 has 8 divisors (see below), whose sum is σ = 16744553280. Its totient is φ = 8371740272.

The previous prime is 12558012667. The next prime is 12558012743. The reversal of 12558012681 is 18621085521.

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 12558012681 - 2²¹ = 12555915529 is a prime.

It is a super-2 number, since 2×12558012681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12558012601) 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, 106075 + ... + 190703.

It is an arithmetic number, because the mean of its divisors is an integer number (2093069160).

Almost surely, 2^12558012681 is an apocalyptic number.

It is an amenable number.

12558012681 is a deficient number, since it is larger than the sum of its proper divisors (4186540599).

12558012681 is an equidigital number, since it uses as much as digits as its factorization.

12558012681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134095.

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 12558012681 in words is "twelve billion, five hundred fifty-eight million, twelve thousand, six hundred eighty-one".