168740359231 has 2 divisors, whose sum is σ = 168740359232. Its totient is φ = 168740359230.

The previous prime is 168740359187. The next prime is 168740359237. The reversal of 168740359231 is 132953047861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168740359231 - 2¹¹ = 168740357183 is a prime.

It is a super-2 number, since 2×168740359231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168740359237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84370179615 + 84370179616.

It is an arithmetic number, because the mean of its divisors is an integer number (84370179616).

It is a 1-persistent number, because it is pandigital, but 2⋅168740359231 = 337480718462 is not.

Almost surely, 2^168740359231 is an apocalyptic number.

168740359231 is a deficient number, since it is larger than the sum of its proper divisors (1).

168740359231 is an equidigital number, since it uses as much as digits as its factorization.

168740359231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 168740359231 in words is "one hundred sixty-eight billion, seven hundred forty million, three hundred fifty-nine thousand, two hundred thirty-one".