1218869674 has 8 divisors (see below), whose sum is σ = 1994514048. Its totient is φ = 554031660.

The previous prime is 1218869669. The next prime is 1218869677. The reversal of 1218869674 is 4769688121.

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

It is not an unprimeable number, because it can be changed into a prime (1218869677) 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, 27701562 + ... + 27701605.

It is an arithmetic number, because the mean of its divisors is an integer number (249314256).

Almost surely, 2^1218869674 is an apocalyptic number.

1218869674 is a deficient number, since it is larger than the sum of its proper divisors (775644374).

1218869674 is a wasteful number, since it uses less digits than its factorization.

1218869674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55403180.

The product of its digits is 1161216, while the sum is 52.

The square root of 1218869674 is about 34912.3140739768. The cubic root of 1218869674 is about 1068.1996317523.

The spelling of 1218869674 in words is "one billion, two hundred eighteen million, eight hundred sixty-nine thousand, six hundred seventy-four".