68810443173 has 6 divisors (see below), whose sum is σ = 99392862374. Its totient is φ = 45873628776.

The previous prime is 68810443171. The next prime is 68810443211. The reversal of 68810443173 is 37134401886.

68810443173 is a `hidden beast` number, since 68 + 81 + 0 + 443 + 1 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64005458049 + 4804985124 = 252993^2 + 69318^2 .

It is not a de Polignac number, because 68810443173 - 2¹ = 68810443171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68810443171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3822802390 + ... + 3822802407.

Almost surely, 2^68810443173 is an apocalyptic number.

It is an amenable number.

68810443173 is a deficient number, since it is larger than the sum of its proper divisors (30582419201).

68810443173 is a wasteful number, since it uses less digits than its factorization.

68810443173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645604803 (or 7645604800 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 68810443173 in words is "sixty-eight billion, eight hundred ten million, four hundred forty-three thousand, one hundred seventy-three".