168967361393 has 2 divisors, whose sum is σ = 168967361394. Its totient is φ = 168967361392.

The previous prime is 168967361383. The next prime is 168967361447. The reversal of 168967361393 is 393163769861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141099399424 + 27867961969 = 375632^2 + 166937^2 .

It is a cyclic number.

It is not a de Polignac number, because 168967361393 - 2¹⁰ = 168967360369 is a prime.

It is a super-2 number, since 2×168967361393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168967361383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84483680696 + 84483680697.

It is an arithmetic number, because the mean of its divisors is an integer number (84483680697).

Almost surely, 2^168967361393 is an apocalyptic number.

It is an amenable number.

168967361393 is a deficient number, since it is larger than the sum of its proper divisors (1).

168967361393 is an equidigital number, since it uses as much as digits as its factorization.

168967361393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26453952, while the sum is 62.

The spelling of 168967361393 in words is "one hundred sixty-eight billion, nine hundred sixty-seven million, three hundred sixty-one thousand, three hundred ninety-three".