1189878495788 has 12 divisors (see below), whose sum is σ = 2117580374280. Its totient is φ = 584855531712.

The previous prime is 1189878495787. The next prime is 1189878495853. The reversal of 1189878495788 is 8875948789811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1189878495787) 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 3 ways as a sum of consecutive naturals, for example, 2520928781 + ... + 2520929252.

It is an arithmetic number, because the mean of its divisors is an integer number (176465031190).

Almost surely, 2^{1189878495788} is an apocalyptic number.

It is an amenable number.

1189878495788 is a deficient number, since it is larger than the sum of its proper divisors (927701878492).

1189878495788 is a wasteful number, since it uses less digits than its factorization.

1189878495788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041858096 (or 5041858094 counting only the distinct ones).

The product of its digits is 2601123840, while the sum is 83.

The spelling of 1189878495788 in words is "one trillion, one hundred eighty-nine billion, eight hundred seventy-eight million, four hundred ninety-five thousand, seven hundred eighty-eight".