4938786647 has 2 divisors, whose sum is σ = 4938786648. Its totient is φ = 4938786646.

The previous prime is 4938786551. The next prime is 4938786659. The reversal of 4938786647 is 7466878394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4938786647 - 2²² = 4934592343 is a prime.

It is a super-2 number, since 2×4938786647² = 48783227089171005218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4938786647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4938786947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469393323 + 2469393324.

It is an arithmetic number, because the mean of its divisors is an integer number (2469393324).

Almost surely, 2^4938786647 is an apocalyptic number.

4938786647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4938786647 is an equidigital number, since it uses as much as digits as its factorization.

4938786647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The square root of 4938786647 is about 70276.5013855983. The cubic root of 4938786647 is about 1702.9690499439.

The spelling of 4938786647 in words is "four billion, nine hundred thirty-eight million, seven hundred eighty-six thousand, six hundred forty-seven".