1761581840131 has 2 divisors, whose sum is σ = 1761581840132. Its totient is φ = 1761581840130.

The previous prime is 1761581840063. The next prime is 1761581840173. The reversal of 1761581840131 is 1310481851671.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1761581840131 - 2⁷ = 1761581840003 is a prime.

It is a super-2 number, since 2×1761581840131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1761581840231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 880790920065 + 880790920066.

It is an arithmetic number, because the mean of its divisors is an integer number (880790920066).

Almost surely, 2^{1761581840131} is an apocalyptic number.

1761581840131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1761581840131 is an equidigital number, since it uses as much as digits as its factorization.

1761581840131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 1761581840131 in words is "one trillion, seven hundred sixty-one billion, five hundred eighty-one million, eight hundred forty thousand, one hundred thirty-one".