189312311269 has 8 divisors (see below), whose sum is σ = 191609988480. Its totient is φ = 187018424736.

The previous prime is 189312311267. The next prime is 189312311273. The reversal of 189312311269 is 962113213981.

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

It is a cyclic number.

It is not a de Polignac number, because 189312311269 - 2¹ = 189312311267 is a prime.

It is a super-2 number, since 2×189312311269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189312311263) 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, 847117 + ... + 1047010.

It is an arithmetic number, because the mean of its divisors is an integer number (23951248560).

Almost surely, 2^189312311269 is an apocalyptic number.

It is an amenable number.

189312311269 is a deficient number, since it is larger than the sum of its proper divisors (2297677211).

189312311269 is a wasteful number, since it uses less digits than its factorization.

189312311269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895339.

The product of its digits is 139968, while the sum is 46.

The spelling of 189312311269 in words is "one hundred eighty-nine billion, three hundred twelve million, three hundred eleven thousand, two hundred sixty-nine".