4938786666 has 48 divisors (see below), whose sum is σ = 11724579360. Its totient is φ = 1490052960.

The previous prime is 4938786659. The next prime is 4938786683. The reversal of 4938786666 is 6666878394.

It is a super-2 number, since 2×4938786666² = 48783227464518791112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9120 + ... + 99803.

It is an arithmetic number, because the mean of its divisors is an integer number (244262070).

Almost surely, 2^4938786666 is an apocalyptic number.

4938786666 is an abundant number, since it is smaller than the sum of its proper divisors (6785792694).

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

4938786666 is a wasteful number, since it uses less digits than its factorization.

4938786666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109171 (or 109168 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The square root of 4938786666 is about 70276.5015207786. The cubic root of 4938786666 is about 1702.9690521277.

The spelling of 4938786666 in words is "four billion, nine hundred thirty-eight million, seven hundred eighty-six thousand, six hundred sixty-six".