1168479881 has 2 divisors, whose sum is σ = 1168479882. Its totient is φ = 1168479880.

The previous prime is 1168479847. The next prime is 1168479889. The reversal of 1168479881 is 1889748611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 928725625 + 239754256 = 30475^2 + 15484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1168479881 - 2¹⁴ = 1168463497 is a prime.

It is a super-2 number, since 2×1168479881² = 2730690464603548322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1168479889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584239940 + 584239941.

It is an arithmetic number, because the mean of its divisors is an integer number (584239941).

Almost surely, 2^1168479881 is an apocalyptic number.

It is an amenable number.

1168479881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168479881 is an equidigital number, since it uses as much as digits as its factorization.

1168479881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 53.

The square root of 1168479881 is about 34183.0349881341. The cubic root of 1168479881 is about 1053.2716941601.

The spelling of 1168479881 in words is "one billion, one hundred sixty-eight million, four hundred seventy-nine thousand, eight hundred eighty-one".