189030018742 has 16 divisors (see below), whose sum is σ = 291981521664. Its totient is φ = 91726984000.

The previous prime is 189030018691. The next prime is 189030018743. The reversal of 189030018742 is 247810030981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189030018743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6019009 + ... + 6050332.

It is an arithmetic number, because the mean of its divisors is an integer number (18248845104).

Almost surely, 2^189030018742 is an apocalyptic number.

189030018742 is a deficient number, since it is larger than the sum of its proper divisors (102951502922).

189030018742 is a wasteful number, since it uses less digits than its factorization.

189030018742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12069575.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 189030018742 in words is "one hundred eighty-nine billion, thirty million, eighteen thousand, seven hundred forty-two".