189058716987 has 24 divisors (see below), whose sum is σ = 303345450000. Its totient is φ = 104308255296.

The previous prime is 189058716937. The next prime is 189058716997. The reversal of 189058716987 is 789617850981.

It is not a de Polignac number, because 189058716987 - 2⁶ = 189058716923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189058716907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22170112 + ... + 22178637.

It is an arithmetic number, because the mean of its divisors is an integer number (12639393750).

Almost surely, 2^189058716987 is an apocalyptic number.

189058716987 is a deficient number, since it is larger than the sum of its proper divisors (114286733013).

189058716987 is a wasteful number, since it uses less digits than its factorization.

189058716987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44348795 (or 44348788 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 69.

The spelling of 189058716987 in words is "one hundred eighty-nine billion, fifty-eight million, seven hundred sixteen thousand, nine hundred eighty-seven".