1188723668 has 12 divisors (see below), whose sum is σ = 2269381632. Its totient is φ = 540328920.

The previous prime is 1188723667. The next prime is 1188723709. The reversal of 1188723668 is 8663278811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188723667) 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, 13508180 + ... + 13508267.

It is an arithmetic number, because the mean of its divisors is an integer number (189115136).

Almost surely, 2^1188723668 is an apocalyptic number.

It is an amenable number.

1188723668 is a deficient number, since it is larger than the sum of its proper divisors (1080657964).

1188723668 is a wasteful number, since it uses less digits than its factorization.

1188723668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016462 (or 27016460 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 1188723668 is about 34477.8721501197. The cubic root of 1188723668 is about 1059.3195074618.

The spelling of 1188723668 in words is "one billion, one hundred eighty-eight million, seven hundred twenty-three thousand, six hundred sixty-eight".