1218198917362 has 16 divisors (see below), whose sum is σ = 2095720304832. Its totient is φ = 520240424400.

The previous prime is 1218198917323. The next prime is 1218198917363. The reversal of 1218198917362 is 2637198918121.

It is a junction number, because it is equal to n+sod(n) for n = 1218198917297 and 1218198917306.

It is not an unprimeable number, because it can be changed into a prime (1218198917363) 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 7 ways as a sum of consecutive naturals, for example, 153731389 + ... + 153739312.

It is an arithmetic number, because the mean of its divisors is an integer number (130982519052).

Almost surely, 2^{1218198917362} is an apocalyptic number.

1218198917362 is a deficient number, since it is larger than the sum of its proper divisors (877521387470).

1218198917362 is a wasteful number, since it uses less digits than its factorization.

1218198917362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307470993.

The product of its digits is 2612736, while the sum is 58.

The spelling of 1218198917362 in words is "one trillion, two hundred eighteen billion, one hundred ninety-eight million, nine hundred seventeen thousand, three hundred sixty-two".