189270194340 has 48 divisors (see below), whose sum is σ = 547051921920. Its totient is φ = 48843920640.

The previous prime is 189270194293. The next prime is 189270194353. The reversal of 189270194340 is 43491072981.

It is a self number, because there is not a number n which added to its sum of digits gives 189270194340.

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, 50877225 + ... + 50880944.

It is an arithmetic number, because the mean of its divisors is an integer number (11396915040).

Almost surely, 2^189270194340 is an apocalyptic number.

189270194340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189270194340 is an abundant number, since it is smaller than the sum of its proper divisors (357781727580).

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

189270194340 is a wasteful number, since it uses less digits than its factorization.

189270194340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101758212 (or 101758210 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 189270194340 in words is "one hundred eighty-nine billion, two hundred seventy million, one hundred ninety-four thousand, three hundred forty".