4939494813 has 12 divisors (see below), whose sum is σ = 7783446528. Its totient is φ = 2993633160.

The previous prime is 4939494767. The next prime is 4939494817. The reversal of 4939494813 is 3184949394.

4939494813 is a `hidden beast` number, since 49 + 39 + 494 + 81 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4939494813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4939494813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939494817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24946845 + ... + 24947042.

It is an arithmetic number, because the mean of its divisors is an integer number (648620544).

Almost surely, 2^4939494813 is an apocalyptic number.

It is an amenable number.

4939494813 is a deficient number, since it is larger than the sum of its proper divisors (2843951715).

4939494813 is a wasteful number, since it uses less digits than its factorization.

4939494813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49893904 (or 49893901 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 4939494813 is about 70281.5396316842. The cubic root of 4939494813 is about 1703.0504415372.

The spelling of 4939494813 in words is "four billion, nine hundred thirty-nine million, four hundred ninety-four thousand, eight hundred thirteen".