185000177813 has 4 divisors (see below), whose sum is σ = 201818375808. Its totient is φ = 168181979820.

The previous prime is 185000177779. The next prime is 185000177821. The reversal of 185000177813 is 318771000581.

It is a happy number.

185000177813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 185000177813 - 2³⁶ = 116280701077 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 (185000177413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8409098981 + ... + 8409099002.

It is an arithmetic number, because the mean of its divisors is an integer number (50454593952).

Almost surely, 2^185000177813 is an apocalyptic number.

It is an amenable number.

185000177813 is a deficient number, since it is larger than the sum of its proper divisors (16818197995).

185000177813 is a wasteful number, since it uses less digits than its factorization.

185000177813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16818197994.

The product of its (nonzero) digits is 47040, while the sum is 41.

The spelling of 185000177813 in words is "one hundred eighty-five billion, one hundred seventy-seven thousand, eight hundred thirteen".