14140167517781 has 2 divisors, whose sum is σ = 14140167517782. Its totient is φ = 14140167517780.

The previous prime is 14140167517769. The next prime is 14140167517789. The reversal of 14140167517781 is 18771576104141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14140111791556 + 55726225 = 3760334^2 + 7465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14140167517781 is a prime.

It is a super-2 number, since 2×14140167517781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14140167517789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7070083758890 + 7070083758891.

It is an arithmetic number, because the mean of its divisors is an integer number (7070083758891).

Almost surely, 2^{14140167517781} is an apocalyptic number.

It is an amenable number.

14140167517781 is a deficient number, since it is larger than the sum of its proper divisors (1).

14140167517781 is an equidigital number, since it uses as much as digits as its factorization.

14140167517781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1317120, while the sum is 53.

The spelling of 14140167517781 in words is "fourteen trillion, one hundred forty billion, one hundred sixty-seven million, five hundred seventeen thousand, seven hundred eighty-one".