4995718261 has 2 divisors, whose sum is σ = 4995718262. Its totient is φ = 4995718260.

The previous prime is 4995718249. The next prime is 4995718303. The reversal of 4995718261 is 1628175994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4169155761 + 826562500 = 64569^2 + 28750^2 .

It is a cyclic number.

It is not a de Polignac number, because 4995718261 - 2⁵ = 4995718229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4995718199 and 4995718208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4995718561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497859130 + 2497859131.

It is an arithmetic number, because the mean of its divisors is an integer number (2497859131).

Almost surely, 2^4995718261 is an apocalyptic number.

It is an amenable number.

4995718261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4995718261 is an equidigital number, since it uses as much as digits as its factorization.

4995718261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 52.

The square root of 4995718261 is about 70680.3951672598. The cubic root of 4995718261 is about 1709.4876958993.

The spelling of 4995718261 in words is "four billion, nine hundred ninety-five million, seven hundred eighteen thousand, two hundred sixty-one".