189720670299 has 16 divisors (see below), whose sum is σ = 253351316352. Its totient is φ = 126285369408.

The previous prime is 189720670289. The next prime is 189720670333. The reversal of 189720670299 is 992076027981.

189720670299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189720670299 - 2⁴ = 189720670283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189720670289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6243567 + ... + 6273879.

It is an arithmetic number, because the mean of its divisors is an integer number (15834457272).

Almost surely, 2^189720670299 is an apocalyptic number.

189720670299 is a deficient number, since it is larger than the sum of its proper divisors (63630646053).

189720670299 is a wasteful number, since it uses less digits than its factorization.

189720670299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33466.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 189720670299 in words is "one hundred eighty-nine billion, seven hundred twenty million, six hundred seventy thousand, two hundred ninety-nine".