189519535120 has 40 divisors (see below), whose sum is σ = 440663789016. Its totient is φ = 75802503168.

The previous prime is 189519535111. The next prime is 189519535151. The reversal of 189519535120 is 21535915981.

It can be written as a sum of positive squares in 4 ways, for example, as 6841936656 + 182677598464 = 82716^2 + 427408^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186744 + ... + 1336936.

Almost surely, 2^189519535120 is an apocalyptic number.

189519535120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189519535120 is an abundant number, since it is smaller than the sum of its proper divisors (251144253896).

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

189519535120 is a wasteful number, since it uses less digits than its factorization.

189519535120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165979 (or 165973 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 49.

The spelling of 189519535120 in words is "one hundred eighty-nine billion, five hundred nineteen million, five hundred thirty-five thousand, one hundred twenty".