189420934924 has 12 divisors (see below), whose sum is σ = 356985608224. Its totient is φ = 87425046864.

The previous prime is 189420934831. The next prime is 189420934961. The reversal of 189420934924 is 429439024981.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1821355092 + ... + 1821355195.

Almost surely, 2^189420934924 is an apocalyptic number.

It is an amenable number.

189420934924 is a deficient number, since it is larger than the sum of its proper divisors (167564673300).

189420934924 is a wasteful number, since it uses less digits than its factorization.

189420934924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642710304 (or 3642710302 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 189420934924 in words is "one hundred eighty-nine billion, four hundred twenty million, nine hundred thirty-four thousand, nine hundred twenty-four".