7231463643161 has 2 divisors, whose sum is σ = 7231463643162. Its totient is φ = 7231463643160.

The previous prime is 7231463643139. The next prime is 7231463643221. The reversal of 7231463643161 is 1613463641327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7186500985225 + 44962657936 = 2680765^2 + 212044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7231463643161 is a prime.

It is not a weakly prime, because it can be changed into another prime (7231463643101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615731821580 + 3615731821581.

It is an arithmetic number, because the mean of its divisors is an integer number (3615731821581).

Almost surely, 2^{7231463643161} is an apocalyptic number.

It is an amenable number.

7231463643161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7231463643161 is an equidigital number, since it uses as much as digits as its factorization.

7231463643161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 47.

The spelling of 7231463643161 in words is "seven trillion, two hundred thirty-one billion, four hundred sixty-three million, six hundred forty-three thousand, one hundred sixty-one".