189005570069 has 4 divisors (see below), whose sum is σ = 191282745696. Its totient is φ = 186728394444.

The previous prime is 189005570059. The next prime is 189005570081. The reversal of 189005570069 is 960075500981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189005570069 is a prime.

It is a super-2 number, since 2×189005570069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189005569999 and 189005570026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189005570009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138587689 + ... + 1138587854.

It is an arithmetic number, because the mean of its divisors is an integer number (47820686424).

Almost surely, 2^189005570069 is an apocalyptic number.

It is an amenable number.

189005570069 is a deficient number, since it is larger than the sum of its proper divisors (2277175627).

189005570069 is an equidigital number, since it uses as much as digits as its factorization.

189005570069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277175626.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 189005570069 in words is "one hundred eighty-nine billion, five million, five hundred seventy thousand, sixty-nine".