4979338961 has 2 divisors, whose sum is σ = 4979338962. Its totient is φ = 4979338960.

The previous prime is 4979338939. The next prime is 4979339033. The reversal of 4979338961 is 1698339794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2691534400 + 2287804561 = 51880^2 + 47831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4979338961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4979338961.

It is not a weakly prime, because it can be changed into another prime (4979338901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489669480 + 2489669481.

It is an arithmetic number, because the mean of its divisors is an integer number (2489669481).

Almost surely, 2^4979338961 is an apocalyptic number.

It is an amenable number.

4979338961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4979338961 is an equidigital number, since it uses as much as digits as its factorization.

4979338961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 59.

The square root of 4979338961 is about 70564.4312738365. The cubic root of 4979338961 is about 1707.6173696623.

The spelling of 4979338961 in words is "four billion, nine hundred seventy-nine million, three hundred thirty-eight thousand, nine hundred sixty-one".