189663832852 has 48 divisors (see below), whose sum is σ = 364296093840. Its totient is φ = 85859923968.

The previous prime is 189663832847. The next prime is 189663832859. The reversal of 189663832852 is 258238366981.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 56879388036 + 132784444816 = 238494^2 + 364396^2 .

It is a super-2 number, since 2×189663832852² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189663832859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11646988 + ... + 11663260.

It is an arithmetic number, because the mean of its divisors is an integer number (7589501955).

Almost surely, 2^189663832852 is an apocalyptic number.

It is an amenable number.

189663832852 is a deficient number, since it is larger than the sum of its proper divisors (174632260988).

189663832852 is a wasteful number, since it uses less digits than its factorization.

189663832852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20572 (or 20570 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 61.

The spelling of 189663832852 in words is "one hundred eighty-nine billion, six hundred sixty-three million, eight hundred thirty-two thousand, eight hundred fifty-two".