189089783146 has 32 divisors (see below), whose sum is σ = 314088136128. Its totient is φ = 84656327040.

The previous prime is 189089783143. The next prime is 189089783153. The reversal of 189089783146 is 641387980981.

It is not an unprimeable number, because it can be changed into a prime (189089783143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096885 + ... + 1257511.

It is an arithmetic number, because the mean of its divisors is an integer number (9815254254).

Almost surely, 2^189089783146 is an apocalyptic number.

189089783146 is a deficient number, since it is larger than the sum of its proper divisors (124998352982).

189089783146 is a wasteful number, since it uses less digits than its factorization.

189089783146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161446.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 189089783146 in words is "one hundred eighty-nine billion, eighty-nine million, seven hundred eighty-three thousand, one hundred forty-six".