189769672045 has 32 divisors (see below), whose sum is σ = 243078541056. Its totient is φ = 141727104000.

The previous prime is 189769672031. The next prime is 189769672049. The reversal of 189769672045 is 540276967981.

It is not a de Polignac number, because 189769672045 - 2¹¹ = 189769669997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189769672049) 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, 8858287 + ... + 8879683.

It is an arithmetic number, because the mean of its divisors is an integer number (7596204408).

Almost surely, 2^189769672045 is an apocalyptic number.

It is an amenable number.

189769672045 is a deficient number, since it is larger than the sum of its proper divisors (53308869011).

189769672045 is a wasteful number, since it uses less digits than its factorization.

189769672045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 189769672045 in words is "one hundred eighty-nine billion, seven hundred sixty-nine million, six hundred seventy-two thousand, forty-five".