6463242621 has 48 divisors (see below), whose sum is σ = 10501096320. Its totient is φ = 3796191360.

The previous prime is 6463242613. The next prime is 6463242623. The reversal of 6463242621 is 1262423646.

6463242621 is a `hidden beast` number, since 6 + 4 + 6 + 3 + 24 + 2 + 621 = 666.

It is not a de Polignac number, because 6463242621 - 2³ = 6463242613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463242623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 960015 + ... + 966723.

It is an arithmetic number, because the mean of its divisors is an integer number (218772840).

Almost surely, 2^6463242621 is an apocalyptic number.

It is an amenable number.

6463242621 is a deficient number, since it is larger than the sum of its proper divisors (4037853699).

6463242621 is a wasteful number, since it uses less digits than its factorization.

6463242621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026 (or 7023 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 6463242621 is about 80394.2947042886. The cubic root of 6463242621 is about 1862.7310461296.

The spelling of 6463242621 in words is "six billion, four hundred sixty-three million, two hundred forty-two thousand, six hundred twenty-one".