6243906564 has 144 divisors (see below), whose sum is σ = 18782714496. Its totient is φ = 1711756800.

The previous prime is 6243906553. The next prime is 6243906593. The reversal of 6243906564 is 4656093426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 625299 + ... + 635205.

Almost surely, 2^6243906564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6243906564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9391357248).

6243906564 is an abundant number, since it is smaller than the sum of its proper divisors (12538807932).

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

6243906564 is a wasteful number, since it uses less digits than its factorization.

6243906564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026 (or 10021 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The square root of 6243906564 is about 79018.3938333348. The cubic root of 6243906564 is about 1841.4169304010.

The spelling of 6243906564 in words is "six billion, two hundred forty-three million, nine hundred six thousand, five hundred sixty-four".