12641805463 has 8 divisors (see below), whose sum is σ = 14460020640. Its totient is φ = 10826651040.

The previous prime is 12641805437. The next prime is 12641805521. The reversal of 12641805463 is 36450814621.

It is a happy number.

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 12641805463 - 2⁹ = 12641804951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641805413) 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, 756328 + ... + 772861.

It is an arithmetic number, because the mean of its divisors is an integer number (1807502580).

Almost surely, 2^12641805463 is an apocalyptic number.

12641805463 is a deficient number, since it is larger than the sum of its proper divisors (1818215177).

12641805463 is a wasteful number, since it uses less digits than its factorization.

12641805463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530377.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 12641805463 in words is "twelve billion, six hundred forty-one million, eight hundred five thousand, four hundred sixty-three".