189490716235 has 16 divisors (see below), whose sum is σ = 228312953856. Its totient is φ = 150977759328.

The previous prime is 189490716221. The next prime is 189490716251. The reversal of 189490716235 is 532617094981.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 189490716235 - 2¹¹ = 189490714187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143622 + ... + 1298788.

It is an arithmetic number, because the mean of its divisors is an integer number (14269559616).

It is a 1-persistent number, because it is pandigital, but 2⋅189490716235 = 378981432470 is not.

Almost surely, 2^189490716235 is an apocalyptic number.

189490716235 is a deficient number, since it is larger than the sum of its proper divisors (38822237621).

189490716235 is a wasteful number, since it uses less digits than its factorization.

189490716235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156162.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 189490716235 in words is "one hundred eighty-nine billion, four hundred ninety million, seven hundred sixteen thousand, two hundred thirty-five".