1218148568 has 32 divisors (see below), whose sum is σ = 2811113760. Its totient is φ = 481904640.

The previous prime is 1218148541. The next prime is 1218148571. The reversal of 1218148568 is 8658418121.

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, 835913 + ... + 837368.

It is an arithmetic number, because the mean of its divisors is an integer number (87847305).

Almost surely, 2^1218148568 is an apocalyptic number.

It is an amenable number.

1218148568 is an abundant number, since it is smaller than the sum of its proper divisors (1592965192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1218148568 is a wasteful number, since it uses less digits than its factorization.

1218148568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673307 (or 1673303 counting only the distinct ones).

The product of its digits is 122880, while the sum is 44.

The square root of 1218148568 is about 34901.9851584405. The cubic root of 1218148568 is about 1067.9889345971.

The spelling of 1218148568 in words is "one billion, two hundred eighteen million, one hundred forty-eight thousand, five hundred sixty-eight".