11190889369 has 27 divisors (see below), whose sum is σ = 12589986549. Its totient is φ = 9939746520.

The previous prime is 11190889351. The next prime is 11190889399. The reversal of 11190889369 is 96398809111.

The square root of 11190889369 is 105787.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 11190889369 - 2⁹ = 11190888857 is a prime.

It is a super-2 number, since 2×11190889369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11190889309) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68655682 + ... + 68655844.

Almost surely, 2^11190889369 is an apocalyptic number.

11190889369 is the 105787-th square number.

11190889369 is the 52894-th centered octagonal number.

It is an amenable number.

11190889369 is a deficient number, since it is larger than the sum of its proper divisors (1399097180).

11190889369 is an frugal number, since it uses more digits than its factorization.

11190889369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 55.

The spelling of 11190889369 in words is "eleven billion, one hundred ninety million, eight hundred eighty-nine thousand, three hundred sixty-nine".