4645640063 has 4 divisors (see below), whose sum is σ = 4753678248. Its totient is φ = 4537601880.

The previous prime is 4645640039. The next prime is 4645640101. The reversal of 4645640063 is 3600465464.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4645640063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4645639999 and 4645640026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645640033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54019028 + ... + 54019113.

It is an arithmetic number, because the mean of its divisors is an integer number (1188419562).

Almost surely, 2^4645640063 is an apocalyptic number.

4645640063 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4645640063 is a deficient number, since it is larger than the sum of its proper divisors (108038185).

4645640063 is a wasteful number, since it uses less digits than its factorization.

4645640063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108038184.

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 4645640063 is about 68158.9323786692. The cubic root of 4645640063 is about 1668.5857081908.

The spelling of 4645640063 in words is "four billion, six hundred forty-five million, six hundred forty thousand, sixty-three".