189154875108 has 12 divisors (see below), whose sum is σ = 441361375280. Its totient is φ = 63051625032.

The previous prime is 189154875101. The next prime is 189154875109. The reversal of 189154875108 is 801578451981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (189154875101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7881453118 + ... + 7881453141.

Almost surely, 2^189154875108 is an apocalyptic number.

It is an amenable number.

189154875108 is an abundant number, since it is smaller than the sum of its proper divisors (252206500172).

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

189154875108 is a wasteful number, since it uses less digits than its factorization.

189154875108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15762906266 (or 15762906264 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 57.

The spelling of 189154875108 in words is "one hundred eighty-nine billion, one hundred fifty-four million, eight hundred seventy-five thousand, one hundred eight".