7661593141 has 2 divisors, whose sum is σ = 7661593142. Its totient is φ = 7661593140.

The previous prime is 7661593111. The next prime is 7661593151. The reversal of 7661593141 is 1413951667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5166590641 + 2495002500 = 71879^2 + 49950^2 .

It is a cyclic number.

It is not a de Polignac number, because 7661593141 - 2⁷ = 7661593013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7661593111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830796570 + 3830796571.

It is an arithmetic number, because the mean of its divisors is an integer number (3830796571).

Almost surely, 2^7661593141 is an apocalyptic number.

It is an amenable number.

7661593141 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661593141 is an equidigital number, since it uses as much as digits as its factorization.

7661593141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 7661593141 is about 87530.5269091875. The cubic root of 7661593141 is about 1971.3921756823.

The spelling of 7661593141 in words is "seven billion, six hundred sixty-one million, five hundred ninety-three thousand, one hundred forty-one".