9206861761 has 2 divisors, whose sum is σ = 9206861762. Its totient is φ = 9206861760.

The previous prime is 9206861753. The next prime is 9206861767. The reversal of 9206861761 is 1671686029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7652925361 + 1553936400 = 87481^2 + 39420^2 .

It is a cyclic number.

It is not a de Polignac number, because 9206861761 - 2³ = 9206861753 is a prime.

It is a super-2 number, since 2×9206861761² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9206861767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4603430880 + 4603430881.

It is an arithmetic number, because the mean of its divisors is an integer number (4603430881).

Almost surely, 2^9206861761 is an apocalyptic number.

It is an amenable number.

9206861761 is a deficient number, since it is larger than the sum of its proper divisors (1).

9206861761 is an equidigital number, since it uses as much as digits as its factorization.

9206861761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 9206861761 is about 95952.3932010036. The cubic root of 9206861761 is about 2095.8999185728.

The spelling of 9206861761 in words is "nine billion, two hundred six million, eight hundred sixty-one thousand, seven hundred sixty-one".