4866591636 has 36 divisors (see below), whose sum is σ = 12510170400. Its totient is φ = 1594701648.

The previous prime is 4866591623. The next prime is 4866591659. The reversal of 4866591636 is 6361956684.

4866591636 is a `hidden beast` number, since 48 + 6 + 6 + 591 + 6 + 3 + 6 = 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, 1143496 + ... + 1147743.

Almost surely, 2^4866591636 is an apocalyptic number.

It is an amenable number.

4866591636 is an abundant number, since it is smaller than the sum of its proper divisors (7643578764).

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

4866591636 is a wasteful number, since it uses less digits than its factorization.

4866591636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291308 (or 2291303 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 4866591636 is about 69760.9606871924. The cubic root of 4866591636 is about 1694.6303044189.

The spelling of 4866591636 in words is "four billion, eight hundred sixty-six million, five hundred ninety-one thousand, six hundred thirty-six".