1768513287131 has 2 divisors, whose sum is σ = 1768513287132. Its totient is φ = 1768513287130.

The previous prime is 1768513287067. The next prime is 1768513287193. The reversal of 1768513287131 is 1317823158671.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1768513287131 - 2⁶ = 1768513287067 is a prime.

It is a super-2 number, since 2×1768513287131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1768513287631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884256643565 + 884256643566.

It is an arithmetic number, because the mean of its divisors is an integer number (884256643566).

Almost surely, 2^{1768513287131} is an apocalyptic number.

1768513287131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768513287131 is an equidigital number, since it uses as much as digits as its factorization.

1768513287131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 53.

The spelling of 1768513287131 in words is "one trillion, seven hundred sixty-eight billion, five hundred thirteen million, two hundred eighty-seven thousand, one hundred thirty-one".