189273545827 has 8 divisors (see below), whose sum is σ = 196546003920. Its totient is φ = 182127565440.

The previous prime is 189273545821. The next prime is 189273545831. The reversal of 189273545827 is 728545372981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189273545827 is a prime.

It is a super-2 number, since 2×189273545827² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189273545821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31616377 + ... + 31622362.

It is an arithmetic number, because the mean of its divisors is an integer number (24568250490).

Almost surely, 2^189273545827 is an apocalyptic number.

189273545827 is a deficient number, since it is larger than the sum of its proper divisors (7272458093).

189273545827 is an equidigital number, since it uses as much as digits as its factorization.

189273545827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63238853.

The product of its digits is 33868800, while the sum is 61.

The spelling of 189273545827 in words is "one hundred eighty-nine billion, two hundred seventy-three million, five hundred forty-five thousand, eight hundred twenty-seven".