189794055528 has 576 divisors, whose sum is σ = 698407557120. Its totient is φ = 47698761600.

The previous prime is 189794055469. The next prime is 189794055551. The reversal of 189794055528 is 825550497981.

189794055528 is a `hidden beast` number, since 1 + 8 + 9 + 79 + 4 + 0 + 5 + 552 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 32479375 + ... + 32485217.

It is an arithmetic number, because the mean of its divisors is an integer number (1212513120).

Almost surely, 2^189794055528 is an apocalyptic number.

189794055528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189794055528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349203778560).

189794055528 is an abundant number, since it is smaller than the sum of its proper divisors (508613501592).

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

189794055528 is a wasteful number, since it uses less digits than its factorization.

189794055528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 63.

The spelling of 189794055528 in words is "one hundred eighty-nine billion, seven hundred ninety-four million, fifty-five thousand, five hundred twenty-eight".