12651432004126 has 4 divisors (see below), whose sum is σ = 18977148006192. Its totient is φ = 6325716002062.

The previous prime is 12651432004097. The next prime is 12651432004181. The reversal of 12651432004126 is 62140023415621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3162858001030 + ... + 3162858001033.

It is an arithmetic number, because the mean of its divisors is an integer number (4744287001548).

Almost surely, 2^{12651432004126} is an apocalyptic number.

12651432004126 is a deficient number, since it is larger than the sum of its proper divisors (6325716002066).

12651432004126 is an equidigital number, since it uses as much as digits as its factorization.

12651432004126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325716002065.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 12651432004126 its reverse (62140023415621), we get a palindrome (74791455419747).

The spelling of 12651432004126 in words is "twelve trillion, six hundred fifty-one billion, four hundred thirty-two million, four thousand, one hundred twenty-six".