189612352052 has 12 divisors (see below), whose sum is σ = 335242458180. Its totient is φ = 93828792576.

The previous prime is 189612352049. The next prime is 189612352081. The reversal of 189612352052 is 250253216981.

It can be written as a sum of positive squares in 2 ways, for example, as 69947554576 + 119664797476 = 264476^2 + 345926^2 .

It is a super-2 number, since 2×189612352052² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189612351994 and 189612352012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244345427 + ... + 244346202.

It is an arithmetic number, because the mean of its divisors is an integer number (27936871515).

Almost surely, 2^189612352052 is an apocalyptic number.

It is an amenable number.

189612352052 is a deficient number, since it is larger than the sum of its proper divisors (145630106128).

189612352052 is a wasteful number, since it uses less digits than its factorization.

189612352052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488691730 (or 488691728 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 189612352052 in words is "one hundred eighty-nine billion, six hundred twelve million, three hundred fifty-two thousand, fifty-two".