1188531227048 has 16 divisors (see below), whose sum is σ = 2431086600960. Its totient is φ = 540241466800.

The previous prime is 1188531227041. The next prime is 1188531227057. The reversal of 1188531227048 is 8407221358811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1188531226987 and 1188531227005.

It is not an unprimeable number, because it can be changed into a prime (1188531227041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6753018248 + ... + 6753018423.

It is an arithmetic number, because the mean of its divisors is an integer number (151942912560).

Almost surely, 2^{1188531227048} is an apocalyptic number.

It is an amenable number.

1188531227048 is an abundant number, since it is smaller than the sum of its proper divisors (1242555373912).

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

1188531227048 is a wasteful number, since it uses less digits than its factorization.

1188531227048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506036688 (or 13506036684 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 50.

The spelling of 1188531227048 in words is "one trillion, one hundred eighty-eight billion, five hundred thirty-one million, two hundred twenty-seven thousand, forty-eight".