2115735761 has 2 divisors, whose sum is σ = 2115735762. Its totient is φ = 2115735760.

The previous prime is 2115735737. The next prime is 2115735793. The reversal of 2115735761 is 1675375112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1556697025 + 559038736 = 39455^2 + 23644^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115735761 - 2¹⁰ = 2115734737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115735701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057867880 + 1057867881.

It is an arithmetic number, because the mean of its divisors is an integer number (1057867881).

Almost surely, 2^2115735761 is an apocalyptic number.

It is an amenable number.

2115735761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115735761 is an equidigital number, since it uses as much as digits as its factorization.

2115735761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The square root of 2115735761 is about 45997.1277472844. The cubic root of 2115735761 is about 1283.7697625258.

The spelling of 2115735761 in words is "two billion, one hundred fifteen million, seven hundred thirty-five thousand, seven hundred sixty-one".