185507190068 has 6 divisors (see below), whose sum is σ = 324637582626. Its totient is φ = 92753595032.

The previous prime is 185507190047. The next prime is 185507190091. The reversal of 185507190068 is 860091705581.

It can be written as a sum of positive squares in only one way, i.e., 156287390224 + 29219799844 = 395332^2 + 170938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 185507189998 and 185507190025.

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, 23188398755 + ... + 23188398762.

It is an arithmetic number, because the mean of its divisors is an integer number (54106263771).

Almost surely, 2^185507190068 is an apocalyptic number.

It is an amenable number.

185507190068 is a deficient number, since it is larger than the sum of its proper divisors (139130392558).

185507190068 is a wasteful number, since it uses less digits than its factorization.

185507190068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46376797521 (or 46376797519 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 50.

The spelling of 185507190068 in words is "one hundred eighty-five billion, five hundred seven million, one hundred ninety thousand, sixty-eight".