7831862161 has 2 divisors, whose sum is σ = 7831862162. Its totient is φ = 7831862160.

The previous prime is 7831862153. The next prime is 7831862167. The reversal of 7831862161 is 1612681387.

7831862161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7234353025 + 597509136 = 85055^2 + 24444^2 .

It is a cyclic number.

It is not a de Polignac number, because 7831862161 - 2³ = 7831862153 is a prime.

It is a super-2 number, since 2×7831862161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7831862167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915931080 + 3915931081.

It is an arithmetic number, because the mean of its divisors is an integer number (3915931081).

Almost surely, 2^7831862161 is an apocalyptic number.

It is an amenable number.

7831862161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7831862161 is an equidigital number, since it uses as much as digits as its factorization.

7831862161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 7831862161 is about 88497.8087920825. The cubic root of 7831862161 is about 1985.8891900778.

The spelling of 7831862161 in words is "seven billion, eight hundred thirty-one million, eight hundred sixty-two thousand, one hundred sixty-one".