4641563647 has 4 divisors (see below), whose sum is σ = 5304644176. Its totient is φ = 3978483120.

The previous prime is 4641563639. The next prime is 4641563657. The reversal of 4641563647 is 7463651464.

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

It is a cyclic number.

It is not a de Polignac number, because 4641563647 - 2³ = 4641563639 is a prime.

It is a super-2 number, since 2×4641563647² = 43088226178303881218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4641563597 and 4641563606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4641563657) 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, 331540254 + ... + 331540267.

It is an arithmetic number, because the mean of its divisors is an integer number (1326161044).

Almost surely, 2^4641563647 is an apocalyptic number.

4641563647 is a deficient number, since it is larger than the sum of its proper divisors (663080529).

4641563647 is an equidigital number, since it uses as much as digits as its factorization.

4641563647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663080528.

The product of its digits is 1451520, while the sum is 46.

The square root of 4641563647 is about 68129.0220610864. The cubic root of 4641563647 is about 1668.0975199948.

The spelling of 4641563647 in words is "four billion, six hundred forty-one million, five hundred sixty-three thousand, six hundred forty-seven".