4564688640 has 72 divisors (see below), whose sum is σ = 14578486608. Its totient is φ = 1217249280.

The previous prime is 4564688633. The next prime is 4564688641. The reversal of 4564688640 is 468864654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4564688641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590521 + ... + 598200.

Almost surely, 2^4564688640 is an apocalyptic number.

4564688640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4564688640 is an abundant number, since it is smaller than the sum of its proper divisors (10013797968).

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

4564688640 is a wasteful number, since it uses less digits than its factorization.

4564688640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188745 (or 1188731 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The square root of 4564688640 is about 67562.4795282115. The cubic root of 4564688640 is about 1658.8370235220.

The spelling of 4564688640 in words is "four billion, five hundred sixty-four million, six hundred eighty-eight thousand, six hundred forty".