189042805080 has 288 divisors, whose sum is σ = 649522551600. Its totient is φ = 47677579776.

The previous prime is 189042805073. The next prime is 189042805103. The reversal of 189042805080 is 80508240981.

It is a happy number.

189042805080 is a `hidden beast` number, since 18 + 90 + 42 + 8 + 0 + 508 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 129569391 + ... + 129570849.

Almost surely, 2^189042805080 is an apocalyptic number.

189042805080 is a gapful number since it is divisible by the number (10) 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 189042805080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324761275800).

189042805080 is an abundant number, since it is smaller than the sum of its proper divisors (460479746520).

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

189042805080 is a wasteful number, since it uses less digits than its factorization.

189042805080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 189042805080 in words is "one hundred eighty-nine billion, forty-two million, eight hundred five thousand, eighty".