1218672393692 has 48 divisors (see below), whose sum is σ = 2324695363872. Its totient is φ = 555616938240.

The previous prime is 1218672393691. The next prime is 1218672393779. The reversal of 1218672393692 is 2963932768121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218672393691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50385842 + ... + 50410022.

It is an arithmetic number, because the mean of its divisors is an integer number (48431153414).

Almost surely, 2^{1218672393692} is an apocalyptic number.

It is an amenable number.

1218672393692 is a deficient number, since it is larger than the sum of its proper divisors (1106022970180).

1218672393692 is a wasteful number, since it uses less digits than its factorization.

1218672393692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35958 (or 35956 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 59.

The spelling of 1218672393692 in words is "one trillion, two hundred eighteen billion, six hundred seventy-two million, three hundred ninety-three thousand, six hundred ninety-two".