189618430029 has 32 divisors (see below), whose sum is σ = 290115250176. Its totient is φ = 107914299840.

The previous prime is 189618429991. The next prime is 189618430039. The reversal of 189618430029 is 920034816981.

It is not a de Polignac number, because 189618430029 - 2⁷ = 189618429901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189618430039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6375864 + ... + 6405534.

It is an arithmetic number, because the mean of its divisors is an integer number (9066101568).

Almost surely, 2^189618430029 is an apocalyptic number.

It is an amenable number.

189618430029 is a deficient number, since it is larger than the sum of its proper divisors (100496820147).

189618430029 is a wasteful number, since it uses less digits than its factorization.

189618430029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30905.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 189618430029 in words is "one hundred eighty-nine billion, six hundred eighteen million, four hundred thirty thousand, twenty-nine".