4938618566 has 12 divisors (see below), whose sum is σ = 8617385628. Its totient is φ = 2116550772.

The previous prime is 4938618527. The next prime is 4938618569. The reversal of 4938618566 is 6658168394.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4938618569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25196936 + ... + 25197131.

It is an arithmetic number, because the mean of its divisors is an integer number (718115469).

Almost surely, 2^4938618566 is an apocalyptic number.

4938618566 is a deficient number, since it is larger than the sum of its proper divisors (3678767062).

4938618566 is a wasteful number, since it uses less digits than its factorization.

4938618566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50394083 (or 50394076 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 4938618566 is about 70275.3055205027. The cubic root of 4938618566 is about 1702.9497307596.

The spelling of 4938618566 in words is "four billion, nine hundred thirty-eight million, six hundred eighteen thousand, five hundred sixty-six".