5635872761 has 2 divisors, whose sum is σ = 5635872762. Its totient is φ = 5635872760.

The previous prime is 5635872721. The next prime is 5635872779. The reversal of 5635872761 is 1672785365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3133872361 + 2502000400 = 55981^2 + 50020^2 .

It is a cyclic number.

It is not a de Polignac number, because 5635872761 - 2¹⁴ = 5635856377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5635872721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2817936380 + 2817936381.

It is an arithmetic number, because the mean of its divisors is an integer number (2817936381).

Almost surely, 2^5635872761 is an apocalyptic number.

It is an amenable number.

5635872761 is a deficient number, since it is larger than the sum of its proper divisors (1).

5635872761 is an equidigital number, since it uses as much as digits as its factorization.

5635872761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 50.

The square root of 5635872761 is about 75072.4500799061. The cubic root of 5635872761 is about 1779.5917888345.

The spelling of 5635872761 in words is "five billion, six hundred thirty-five million, eight hundred seventy-two thousand, seven hundred sixty-one".