1368115918 has 16 divisors (see below), whose sum is σ = 2210813136. Its totient is φ = 631215360.

The previous prime is 1368115909. The next prime is 1368115939. The reversal of 1368115918 is 8195118631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83230 + ... + 98302.

It is an arithmetic number, because the mean of its divisors is an integer number (138175821).

Almost surely, 2^1368115918 is an apocalyptic number.

1368115918 is a deficient number, since it is larger than the sum of its proper divisors (842697218).

1368115918 is a wasteful number, since it uses less digits than its factorization.

1368115918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18579.

The product of its digits is 51840, while the sum is 43.

The square root of 1368115918 is about 36988.0510165107. The cubic root of 1368115918 is about 1110.1311746068.

The spelling of 1368115918 in words is "one billion, three hundred sixty-eight million, one hundred fifteen thousand, nine hundred eighteen".