185351851852 has 12 divisors (see below), whose sum is σ = 324368757720. Its totient is φ = 92675063936.

The previous prime is 185351851847. The next prime is 185351851871. The reversal of 185351851852 is 258158153581.

It is a self number, because there is not a number n which added to its sum of digits gives 185351851852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708924 + ... + 934492.

It is an arithmetic number, because the mean of its divisors is an integer number (27030729810).

Almost surely, 2^185351851852 is an apocalyptic number.

It is an amenable number.

185351851852 is a deficient number, since it is larger than the sum of its proper divisors (139016905868).

185351851852 is a wasteful number, since it uses less digits than its factorization.

185351851852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431000 (or 430998 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 52.

The spelling of 185351851852 in words is "one hundred eighty-five billion, three hundred fifty-one million, eight hundred fifty-one thousand, eight hundred fifty-two".