173140981511 has 2 divisors, whose sum is σ = 173140981512. Its totient is φ = 173140981510.

The previous prime is 173140981499. The next prime is 173140981553. The reversal of 173140981511 is 115189041371.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173140981511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173140981561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86570490755 + 86570490756.

It is an arithmetic number, because the mean of its divisors is an integer number (86570490756).

Almost surely, 2^173140981511 is an apocalyptic number.

173140981511 is a deficient number, since it is larger than the sum of its proper divisors (1).

173140981511 is an equidigital number, since it uses as much as digits as its factorization.

173140981511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 41.

The spelling of 173140981511 in words is "one hundred seventy-three billion, one hundred forty million, nine hundred eighty-one thousand, five hundred eleven".