6463942522 has 4 divisors (see below), whose sum is σ = 9695913786. Its totient is φ = 3231971260.

The previous prime is 6463942493. The next prime is 6463942523. The reversal of 6463942522 is 2252493646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5532533161 + 931409361 = 74381^2 + 30519^2 .

It is not an unprimeable number, because it can be changed into a prime (6463942523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615985629 + ... + 1615985632.

Almost surely, 2^6463942522 is an apocalyptic number.

6463942522 is a deficient number, since it is larger than the sum of its proper divisors (3231971264).

6463942522 is a wasteful number, since it uses less digits than its factorization.

6463942522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231971263.

The product of its digits is 622080, while the sum is 43.

The square root of 6463942522 is about 80398.6475134999. The cubic root of 6463942522 is about 1862.7982817439.

The spelling of 6463942522 in words is "six billion, four hundred sixty-three million, nine hundred forty-two thousand, five hundred twenty-two".