6463564542 has 48 divisors (see below), whose sum is σ = 14605299072. Its totient is φ = 2063508480.

The previous prime is 6463564537. The next prime is 6463564559. The reversal of 6463564542 is 2454653646.

It is a happy number.

6463564542 is a `hidden beast` number, since 6 + 4 + 635 + 6 + 4 + 5 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5583 + ... + 113834.

It is an arithmetic number, because the mean of its divisors is an integer number (304277064).

Almost surely, 2^6463564542 is an apocalyptic number.

6463564542 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6463564542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7302649536).

6463564542 is an abundant number, since it is smaller than the sum of its proper divisors (8141734530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6463564542 is a wasteful number, since it uses less digits than its factorization.

6463564542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119553 (or 119550 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The square root of 6463564542 is about 80396.2968177017. The cubic root of 6463564542 is about 1862.7619719007.

The spelling of 6463564542 in words is "six billion, four hundred sixty-three million, five hundred sixty-four thousand, five hundred forty-two".