181263719068 has 6 divisors (see below), whose sum is σ = 317211508376. Its totient is φ = 90631859532.

The previous prime is 181263719051. The next prime is 181263719107. The reversal of 181263719068 is 860917362181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22657964880 + ... + 22657964887.

Almost surely, 2^181263719068 is an apocalyptic number.

It is an amenable number.

181263719068 is a deficient number, since it is larger than the sum of its proper divisors (135947789308).

181263719068 is a wasteful number, since it uses less digits than its factorization.

181263719068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45315929771 (or 45315929769 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 181263719068 in words is "one hundred eighty-one billion, two hundred sixty-three million, seven hundred nineteen thousand, sixty-eight".