189554969311 has 8 divisors (see below), whose sum is σ = 190626134400. Its totient is φ = 188483940120.

The previous prime is 189554969297. The next prime is 189554969347. The reversal of 189554969311 is 113969455981.

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 189554969311 - 2²⁵ = 189521414879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189554969311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189554969111) 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, 4352916 + ... + 4396246.

It is an arithmetic number, because the mean of its divisors is an integer number (23828266800).

Almost surely, 2^189554969311 is an apocalyptic number.

189554969311 is a deficient number, since it is larger than the sum of its proper divisors (1071165089).

189554969311 is a wasteful number, since it uses less digits than its factorization.

189554969311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67949.

The product of its digits is 10497600, while the sum is 61.

The spelling of 189554969311 in words is "one hundred eighty-nine billion, five hundred fifty-four million, nine hundred sixty-nine thousand, three hundred eleven".