189483253668 has 36 divisors (see below), whose sum is σ = 496711247760. Its totient is φ = 63161084232.

The previous prime is 189483253649. The next prime is 189483253669. The reversal of 189483253668 is 866352384981.

It is a happy number.

189483253668 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 8 + 32 + 536 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×189483253668² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (189483253669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97469838 + ... + 97471781.

It is an arithmetic number, because the mean of its divisors is an integer number (13797534660).

Almost surely, 2^189483253668 is an apocalyptic number.

189483253668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189483253668 is an abundant number, since it is smaller than the sum of its proper divisors (307227994092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189483253668 is a wasteful number, since it uses less digits than its factorization.

189483253668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194941638 (or 194941624 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 189483253668 in words is "one hundred eighty-nine billion, four hundred eighty-three million, two hundred fifty-three thousand, six hundred sixty-eight".