1218488126197 has 8 divisors (see below), whose sum is σ = 1257807502080. Its totient is φ = 1179169582080.

The previous prime is 1218488126131. The next prime is 1218488126201. The reversal of 1218488126197 is 7916218848121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1218488126197 - 2¹¹ = 1218488124149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218488121197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367733 + ... + 4638325.

It is an arithmetic number, because the mean of its divisors is an integer number (157225937760).

Almost surely, 2^{1218488126197} is an apocalyptic number.

It is an amenable number.

1218488126197 is a deficient number, since it is larger than the sum of its proper divisors (39319375883).

1218488126197 is a wasteful number, since it uses less digits than its factorization.

1218488126197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415883.

The product of its digits is 3096576, while the sum is 58.

The spelling of 1218488126197 in words is "one trillion, two hundred eighteen billion, four hundred eighty-eight million, one hundred twenty-six thousand, one hundred ninety-seven".