4385385840564 has 36 divisors (see below), whose sum is σ = 11086486241376. Its totient is φ = 1461636330768.

The previous prime is 4385385840557. The next prime is 4385385840587. The reversal of 4385385840564 is 4650485835834.

4385385840564 is a `hidden beast` number, since 4 + 3 + 8 + 538 + 5 + 8 + 40 + 56 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6286984 + ... + 6949599.

Almost surely, 2^{4385385840564} is an apocalyptic number.

It is an amenable number.

4385385840564 is an abundant number, since it is smaller than the sum of its proper divisors (6701100400812).

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

4385385840564 is a wasteful number, since it uses less digits than its factorization.

4385385840564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13245796 (or 13245791 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 63.

The spelling of 4385385840564 in words is "four trillion, three hundred eighty-five billion, three hundred eighty-five million, eight hundred forty thousand, five hundred sixty-four".