4643578394 has 48 divisors (see below), whose sum is σ = 8747676000. Its totient is φ = 1832425056.

The previous prime is 4643578391. The next prime is 4643578409. The reversal of 4643578394 is 4938753464.

It is not an unprimeable number, because it can be changed into a prime (4643578391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529457 + ... + 538155.

It is an arithmetic number, because the mean of its divisors is an integer number (182243250).

Almost surely, 2^4643578394 is an apocalyptic number.

4643578394 is a deficient number, since it is larger than the sum of its proper divisors (4104097606).

4643578394 is a wasteful number, since it uses less digits than its factorization.

4643578394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147 (or 9140 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 53.

The square root of 4643578394 is about 68143.8067178522. The cubic root of 4643578394 is about 1668.3388401316.

The spelling of 4643578394 in words is "four billion, six hundred forty-three million, five hundred seventy-eight thousand, three hundred ninety-four".