189766341906 has 32 divisors (see below), whose sum is σ = 388642605120. Its totient is φ = 61739275584.

The previous prime is 189766341899. The next prime is 189766341911. The reversal of 189766341906 is 609143667981.

189766341906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×189766341906² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189766341906.

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, 86380 + ... + 622088.

It is an arithmetic number, because the mean of its divisors is an integer number (12145081410).

Almost surely, 2^189766341906 is an apocalyptic number.

189766341906 is an abundant number, since it is smaller than the sum of its proper divisors (198876263214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189766341906 is a wasteful number, since it uses less digits than its factorization.

189766341906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537130.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 189766341906 in words is "one hundred eighty-nine billion, seven hundred sixty-six million, three hundred forty-one thousand, nine hundred six".