1218313733986 has 16 divisors (see below), whose sum is σ = 1866736730880. Its totient is φ = 596193408160.

The previous prime is 1218313733983. The next prime is 1218313733993. The reversal of 1218313733986 is 6893373138121.

It is not an unprimeable number, because it can be changed into a prime (1218313733983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31293226 + ... + 31332133.

It is an arithmetic number, because the mean of its divisors is an integer number (116671045680).

Almost surely, 2^{1218313733986} is an apocalyptic number.

1218313733986 is a deficient number, since it is larger than the sum of its proper divisors (648422996894).

1218313733986 is a wasteful number, since it uses less digits than its factorization.

1218313733986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62625569.

The product of its digits is 3919104, while the sum is 55.

The spelling of 1218313733986 in words is "one trillion, two hundred eighteen billion, three hundred thirteen million, seven hundred thirty-three thousand, nine hundred eighty-six".