189299739825 has 168 divisors, whose sum is σ = 412034628096. Its totient is φ = 84424032000.

The previous prime is 189299739799. The next prime is 189299739869. The reversal of 189299739825 is 528937992981.

189299739825 is a `hidden beast` number, since 189 + 299 + 73 + 98 + 2 + 5 = 666.

It is not a de Polignac number, because 189299739825 - 2¹³ = 189299731633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 5212480 + ... + 5248670.

It is an arithmetic number, because the mean of its divisors is an integer number (2452587072).

Almost surely, 2^189299739825 is an apocalyptic number.

189299739825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189299739825 is an abundant number, since it is smaller than the sum of its proper divisors (222734888271).

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

189299739825 is an equidigital number, since it uses as much as digits as its factorization.

189299739825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36267 (or 36247 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 72.

The spelling of 189299739825 in words is "one hundred eighty-nine billion, two hundred ninety-nine million, seven hundred thirty-nine thousand, eight hundred twenty-five".