4638544572 has 24 divisors (see below), whose sum is σ = 10888085376. Its totient is φ = 1536922288.

The previous prime is 4638544549. The next prime is 4638544591. The reversal of 4638544572 is 2754458364.

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, 1155318 + ... + 1159325.

It is an arithmetic number, because the mean of its divisors is an integer number (453670224).

Almost surely, 2^4638544572 is an apocalyptic number.

It is an amenable number.

4638544572 is an abundant number, since it is smaller than the sum of its proper divisors (6249540804).

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

4638544572 is a wasteful number, since it uses less digits than its factorization.

4638544572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314817 (or 2314815 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 48.

The square root of 4638544572 is about 68106.8614164535. The cubic root of 4638544572 is about 1667.7357738104.

The spelling of 4638544572 in words is "four billion, six hundred thirty-eight million, five hundred forty-four thousand, five hundred seventy-two".