189422587008 has 72 divisors (see below), whose sum is σ = 545125737195. Its totient is φ = 63135938304.

The previous prime is 189422586959. The next prime is 189422587027. The reversal of 189422587008 is 800785224981.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

189422587008 is a `hidden beast` number, since 18 + 9 + 42 + 2 + 587 + 0 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94711293504 + 94711293504 = 307752^2 + 307752^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=307752.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14765685 + ... + 14778507.

Almost surely, 2^189422587008 is an apocalyptic number.

189422587008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189422587008 is an abundant number, since it is smaller than the sum of its proper divisors (355703150187).

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

189422587008 is an frugal number, since it uses more digits than its factorization.

189422587008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25666 (or 12828 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 189422587008 in words is "one hundred eighty-nine billion, four hundred twenty-two million, five hundred eighty-seven thousand, eight".