4939493653 has 2 divisors, whose sum is σ = 4939493654. Its totient is φ = 4939493652.

The previous prime is 4939493641. The next prime is 4939493687. The reversal of 4939493653 is 3563949394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3805285969 + 1134207684 = 61687^2 + 33678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4939493653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4939493594 and 4939493603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4939493693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469746826 + 2469746827.

It is an arithmetic number, because the mean of its divisors is an integer number (2469746827).

Almost surely, 2^4939493653 is an apocalyptic number.

It is an amenable number.

4939493653 is a deficient number, since it is larger than the sum of its proper divisors (1).

4939493653 is an equidigital number, since it uses as much as digits as its factorization.

4939493653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9447840, while the sum is 55.

The square root of 4939493653 is about 70281.5313791611. The cubic root of 4939493653 is about 1703.0503082214.

The spelling of 4939493653 in words is "four billion, nine hundred thirty-nine million, four hundred ninety-three thousand, six hundred fifty-three".