189738141505535 has 16 divisors (see below), whose sum is σ = 260216079200256. Its totient is φ = 130104268750368.

The previous prime is 189738141505531. The next prime is 189738141505537. The reversal of 189738141505535 is 535505141837981.

It is a cyclic number.

It is not a de Polignac number, because 189738141505535 - 2² = 189738141505531 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 (189738141505531) 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, 36827807 + ... + 41662496.

It is an arithmetic number, because the mean of its divisors is an integer number (16263504950016).

Almost surely, 2^{189738141505535} is an apocalyptic number.

189738141505535 is a deficient number, since it is larger than the sum of its proper divisors (70477937694721).

189738141505535 is an equidigital number, since it uses as much as digits as its factorization.

189738141505535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78559382.

The product of its (nonzero) digits is 90720000, while the sum is 65.

The spelling of 189738141505535 in words is "one hundred eighty-nine trillion, seven hundred thirty-eight billion, one hundred forty-one million, five hundred five thousand, five hundred thirty-five".