189927783772 has 48 divisors (see below), whose sum is σ = 347665393152. Its totient is φ = 90696735360.

The previous prime is 189927783751. The next prime is 189927783791. The reversal of 189927783772 is 277387729981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9067872 + ... + 9088792.

It is an arithmetic number, because the mean of its divisors is an integer number (7243029024).

Almost surely, 2^189927783772 is an apocalyptic number.

It is an amenable number.

189927783772 is a deficient number, since it is larger than the sum of its proper divisors (157737609380).

189927783772 is a wasteful number, since it uses less digits than its factorization.

189927783772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22138 (or 22136 counting only the distinct ones).

The product of its digits is 149361408, while the sum is 70.

The spelling of 189927783772 in words is "one hundred eighty-nine billion, nine hundred twenty-seven million, seven hundred eighty-three thousand, seven hundred seventy-two".