4563653640 has 256 divisors, whose sum is σ = 17244057600. Its totient is φ = 940391424.

The previous prime is 4563653639. The next prime is 4563653749. The reversal of 4563653640 is 463563654.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4563653592 and 4563653601.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 464701 + ... + 474419.

It is an arithmetic number, because the mean of its divisors is an integer number (67359600).

Almost surely, 2^4563653640 is an apocalyptic number.

4563653640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4563653640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8622028800).

4563653640 is an abundant number, since it is smaller than the sum of its proper divisors (12680403960).

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

4563653640 is a wasteful number, since it uses less digits than its factorization.

4563653640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9796 (or 9792 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The square root of 4563653640 is about 67554.8195171891. The cubic root of 4563653640 is about 1658.7116388401.

The spelling of 4563653640 in words is "four billion, five hundred sixty-three million, six hundred fifty-three thousand, six hundred forty".