189407934008 has 16 divisors (see below), whose sum is σ = 373831449000. Its totient is φ = 89719547616.

The previous prime is 189407934007. The next prime is 189407934011. The reversal of 189407934008 is 800439704981.

189407934008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189407934007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623052263 + ... + 623052566.

Almost surely, 2^189407934008 is an apocalyptic number.

It is an amenable number.

189407934008 is a deficient number, since it is larger than the sum of its proper divisors (184423514992).

189407934008 is a wasteful number, since it uses less digits than its factorization.

189407934008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246104854 (or 1246104850 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 189407934008 in words is "one hundred eighty-nine billion, four hundred seven million, nine hundred thirty-four thousand, eight".