4645644564 has 48 divisors (see below), whose sum is σ = 12113712576. Its totient is φ = 1373433600.

The previous prime is 4645644551. The next prime is 4645644569. The reversal of 4645644564 is 4654465464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645644569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423787 + ... + 434610.

It is an arithmetic number, because the mean of its divisors is an integer number (252369012).

Almost surely, 2^4645644564 is an apocalyptic number.

4645644564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4645644564 is an abundant number, since it is smaller than the sum of its proper divisors (7468068012).

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

4645644564 is a wasteful number, since it uses less digits than its factorization.

4645644564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858456 (or 858454 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 48.

The square root of 4645644564 is about 68158.9653970774. The cubic root of 4645644564 is about 1668.5862470690.

Subtracting 4645644564 from its reverse (4654465464), we obtain a square (8820900 = 2970²).

The spelling of 4645644564 in words is "four billion, six hundred forty-five million, six hundred forty-four thousand, five hundred sixty-four".