6463131061 has 4 divisors (see below), whose sum is σ = 6491603232. Its totient is φ = 6434658892.

The previous prime is 6463131041. The next prime is 6463131071. The reversal of 6463131061 is 1601313646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6463131061 - 2⁹ = 6463130549 is a prime.

It is a super-2 number, since 2×6463131061² = 83544126223325971442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463131041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14235745 + ... + 14236198.

It is an arithmetic number, because the mean of its divisors is an integer number (1622900808).

Almost surely, 2^6463131061 is an apocalyptic number.

It is an amenable number.

6463131061 is a deficient number, since it is larger than the sum of its proper divisors (28472171).

6463131061 is a wasteful number, since it uses less digits than its factorization.

6463131061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28472170.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6463131061 is about 80393.6008709648. The cubic root of 6463131061 is about 1862.7203287295.

The spelling of 6463131061 in words is "six billion, four hundred sixty-three million, one hundred thirty-one thousand, sixty-one".