6463948405039 has 4 divisors (see below), whose sum is σ = 6463953536040. Its totient is φ = 6463943274040.

The previous prime is 6463948405021. The next prime is 6463948405051. The reversal of 6463948405039 is 9305048493646.

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 a cyclic number.

It is not a de Polignac number, because 6463948405039 - 2⁹ = 6463948404527 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 (6463948405009) 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, 767829 + ... + 3676609.

It is an arithmetic number, because the mean of its divisors is an integer number (1615988384010).

Almost surely, 2^{6463948405039} is an apocalyptic number.

6463948405039 is a deficient number, since it is larger than the sum of its proper divisors (5131001).

6463948405039 is a wasteful number, since it uses less digits than its factorization.

6463948405039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131000.

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 6463948405039 in words is "six trillion, four hundred sixty-three billion, nine hundred forty-eight million, four hundred five thousand, thirty-nine".