4529643644 has 24 divisors (see below), whose sum is σ = 8296568448. Its totient is φ = 2159791920.

The previous prime is 4529643631. The next prime is 4529643683. The reversal of 4529643644 is 4463469254.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43922 + ... + 104825.

It is an arithmetic number, because the mean of its divisors is an integer number (345690352).

Almost surely, 2^4529643644 is an apocalyptic number.

It is an amenable number.

4529643644 is a deficient number, since it is larger than the sum of its proper divisors (3766924804).

4529643644 is a wasteful number, since it uses less digits than its factorization.

4529643644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149105 (or 149103 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The square root of 4529643644 is about 67302.6273187013. The cubic root of 4529643644 is about 1654.5809210802.

The spelling of 4529643644 in words is "four billion, five hundred twenty-nine million, six hundred forty-three thousand, six hundred forty-four".