6431844862601 has 4 divisors (see below), whose sum is σ = 6431850116100. Its totient is φ = 6431839609104.

The previous prime is 6431844862589. The next prime is 6431844862613. The reversal of 6431844862601 is 1062684481346.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6431844862589) and next prime (6431844862613).

It can be written as a sum of positive squares in 2 ways, for example, as 4940613117001 + 1491231745600 = 2222749^2 + 1221160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6431844862601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6431844861601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287255 + ... + 3598083.

It is an arithmetic number, because the mean of its divisors is an integer number (1607962529025).

Almost surely, 2^{6431844862601} is an apocalyptic number.

It is an amenable number.

6431844862601 is a deficient number, since it is larger than the sum of its proper divisors (5253499).

6431844862601 is a wasteful number, since it uses less digits than its factorization.

6431844862601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253498.

The product of its (nonzero) digits is 5308416, while the sum is 53.

The spelling of 6431844862601 in words is "six trillion, four hundred thirty-one billion, eight hundred forty-four million, eight hundred sixty-two thousand, six hundred one".