2193115160889 has 27 divisors (see below), whose sum is σ = 3343464912879. Its totient is φ = 1385072051760.

The previous prime is 2193115160869. The next prime is 2193115160933. The reversal of 2193115160889 is 9880615113912.

It is a happy number.

The square root of 2193115160889 is 1480917.

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

2193115160889 is a `hidden beast` number, since 2 + 19 + 3 + 1 + 15 + 1 + 608 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1175235950889 + 1017879210000 = 1084083^2 + 1008900^2 .

It is not a de Polignac number, because 2193115160889 - 2⁵ = 2193115160857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2193115160849) 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, 84399279 + ... + 84425259.

Almost surely, 2^{2193115160889} is an apocalyptic number.

2193115160889 is the 1480917-th square number.

2193115160889 is the 740459-th centered octagonal number.

It is an amenable number.

2193115160889 is a deficient number, since it is larger than the sum of its proper divisors (1150349751990).

2193115160889 is an frugal number, since it uses more digits than its factorization.

2193115160889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52006 (or 26003 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 54.

The spelling of 2193115160889 in words is "two trillion, one hundred ninety-three billion, one hundred fifteen million, one hundred sixty thousand, eight hundred eighty-nine".