2075681761 has 2 divisors, whose sum is σ = 2075681762. Its totient is φ = 2075681760.

The previous prime is 2075681749. The next prime is 2075681791. The reversal of 2075681761 is 1671865702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267360000 + 808321761 = 35600^2 + 28431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2075681761 - 2²¹ = 2073584609 is a prime.

It is a super-2 number, since 2×2075681761² = 8616909545896122242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2075681731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1037840880 + 1037840881.

It is an arithmetic number, because the mean of its divisors is an integer number (1037840881).

Almost surely, 2^2075681761 is an apocalyptic number.

It is an amenable number.

2075681761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2075681761 is an equidigital number, since it uses as much as digits as its factorization.

2075681761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2075681761 is about 45559.6505803106. The cubic root of 2075681761 is about 1275.6168766294.

The spelling of 2075681761 in words is "two billion, seventy-five million, six hundred eighty-one thousand, seven hundred sixty-one".