1188974231982 has 24 divisors (see below), whose sum is σ = 2671522349496. Its totient is φ = 396324743832.

The previous prime is 1188974231981. The next prime is 1188974231987. The reversal of 1188974231982 is 2891324798811.

1188974231982 is a `hidden beast` number, since 1 + 18 + 8 + 9 + 7 + 423 + 198 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188974231981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1223224033 + ... + 1223225004.

It is an arithmetic number, because the mean of its divisors is an integer number (111313431229).

Almost surely, 2^{1188974231982} is an apocalyptic number.

1188974231982 is an abundant number, since it is smaller than the sum of its proper divisors (1482548117514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1188974231982 is an equidigital number, since it uses as much as digits as its factorization.

1188974231982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446449054 (or 2446449042 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 63.

The spelling of 1188974231982 in words is "one trillion, one hundred eighty-eight billion, nine hundred seventy-four million, two hundred thirty-one thousand, nine hundred eighty-two".