1188632104389 has 6 divisors (see below), whose sum is σ = 1716913039686. Its totient is φ = 792421402920.

The previous prime is 1188632104349. The next prime is 1188632104489. The reversal of 1188632104389 is 9834012368811.

1188632104389 is a `hidden beast` number, since 1 + 188 + 6 + 3 + 21 + 0 + 438 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1183896324900 + 4735779489 = 1088070^2 + 68817^2 .

It is not a de Polignac number, because 1188632104389 - 2⁸ = 1188632104133 is a prime.

It is a super-3 number, since 3×1188632104389³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188632104349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66035116902 + ... + 66035116919.

It is an arithmetic number, because the mean of its divisors is an integer number (286152173281).

Almost surely, 2^{1188632104389} is an apocalyptic number.

It is an amenable number.

1188632104389 is a deficient number, since it is larger than the sum of its proper divisors (528280935297).

1188632104389 is a wasteful number, since it uses less digits than its factorization.

1188632104389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132070233827 (or 132070233824 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 1188632104389 in words is "one trillion, one hundred eighty-eight billion, six hundred thirty-two million, one hundred four thousand, three hundred eighty-nine".