189290928620 has 12 divisors (see below), whose sum is σ = 397510950144. Its totient is φ = 75716371440.

The previous prime is 189290928611. The next prime is 189290928641. The reversal of 189290928620 is 26829092981.

189290928620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4732273196 + ... + 4732273235.

It is an arithmetic number, because the mean of its divisors is an integer number (33125912512).

Almost surely, 2^189290928620 is an apocalyptic number.

189290928620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189290928620 is an abundant number, since it is smaller than the sum of its proper divisors (208220021524).

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

189290928620 is a wasteful number, since it uses less digits than its factorization.

189290928620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464546440 (or 9464546438 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 189290928620 in words is "one hundred eighty-nine billion, two hundred ninety million, nine hundred twenty-eight thousand, six hundred twenty".