1168945983 has 12 divisors (see below), whose sum is σ = 1689415728. Its totient is φ = 778864320.

The previous prime is 1168945969. The next prime is 1168945991. The reversal of 1168945983 is 3895498611.

It is not a de Polignac number, because 1168945983 - 2⁶ = 1168945919 is a prime.

It is a super-2 number, since 2×1168945983² = 2732869422343672578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168945783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18538 + ... + 51783.

It is an arithmetic number, because the mean of its divisors is an integer number (140784644).

Almost surely, 2^1168945983 is an apocalyptic number.

1168945983 is a deficient number, since it is larger than the sum of its proper divisors (520469745).

1168945983 is a wasteful number, since it uses less digits than its factorization.

1168945983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72174 (or 72171 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 1168945983 is about 34189.8520470622. The cubic root of 1168945983 is about 1053.4117241793.

The spelling of 1168945983 in words is "one billion, one hundred sixty-eight million, nine hundred forty-five thousand, nine hundred eighty-three".