1218864102472 has 16 divisors (see below), whose sum is σ = 2333995090560. Its totient is φ = 596465411664.

The previous prime is 1218864102457. The next prime is 1218864102479. The reversal of 1218864102472 is 2742014688121.

It is not an unprimeable number, because it can be changed into a prime (1218864102479) 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, 1620829548 + ... + 1620830299.

It is an arithmetic number, because the mean of its divisors is an integer number (145874693160).

Almost surely, 2^{1218864102472} is an apocalyptic number.

It is an amenable number.

1218864102472 is a deficient number, since it is larger than the sum of its proper divisors (1115130988088).

1218864102472 is a wasteful number, since it uses less digits than its factorization.

1218864102472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241659900 (or 3241659896 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 1218864102472 in words is "one trillion, two hundred eighteen billion, eight hundred sixty-four million, one hundred two thousand, four hundred seventy-two".