185820386042 has 16 divisors (see below), whose sum is σ = 295710858240. Its totient is φ = 87327108288.

The previous prime is 185820386039. The next prime is 185820386047. The reversal of 185820386042 is 240683028581.

It is not an unprimeable number, because it can be changed into a prime (185820386047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19247183 + ... + 19256834.

It is an arithmetic number, because the mean of its divisors is an integer number (18481928640).

Almost surely, 2^185820386042 is an apocalyptic number.

185820386042 is a deficient number, since it is larger than the sum of its proper divisors (109890472198).

185820386042 is a wasteful number, since it uses less digits than its factorization.

185820386042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38504165.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 185820386042 in words is "one hundred eighty-five billion, eight hundred twenty million, three hundred eighty-six thousand, forty-two".