189158136954 has 32 divisors (see below), whose sum is σ = 379580078016. Its totient is φ = 62842200960.

The previous prime is 189158136953. The next prime is 189158136967. The reversal of 189158136954 is 459631851981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (189158136953) 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 15 ways as a sum of consecutive naturals, for example, 7050814 + ... + 7077590.

It is an arithmetic number, because the mean of its divisors is an integer number (11861877438).

Almost surely, 2^189158136954 is an apocalyptic number.

189158136954 is an abundant number, since it is smaller than the sum of its proper divisors (190421941062).

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

189158136954 is a wasteful number, since it uses less digits than its factorization.

189158136954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30670.

The product of its digits is 9331200, while the sum is 60.

The spelling of 189158136954 in words is "one hundred eighty-nine billion, one hundred fifty-eight million, one hundred thirty-six thousand, nine hundred fifty-four".