12512636126401 has 8 divisors (see below), whose sum is σ = 12538025640000. Its totient is φ = 12487247870160.

The previous prime is 12512636126381. The next prime is 12512636126407. The reversal of 12512636126401 is 10462163621521.

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 12512636126401 - 2⁹ = 12512636125889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512636126407) 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, 21083991 + ... + 21669331.

It is an arithmetic number, because the mean of its divisors is an integer number (1567253205000).

Almost surely, 2^{12512636126401} is an apocalyptic number.

It is an amenable number.

12512636126401 is a deficient number, since it is larger than the sum of its proper divisors (25389513599).

12512636126401 is an equidigital number, since it uses as much as digits as its factorization.

12512636126401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628679.

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 12512636126401 its reverse (10462163621521), we get a palindrome (22974799747922).

The spelling of 12512636126401 in words is "twelve trillion, five hundred twelve billion, six hundred thirty-six million, one hundred twenty-six thousand, four hundred one".