1168840769 has 2 divisors, whose sum is σ = 1168840770. Its totient is φ = 1168840768.

The previous prime is 1168840759. The next prime is 1168840801. The reversal of 1168840769 is 9670488611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1015378225 + 153462544 = 31865^2 + 12388^2 .

It is a cyclic number.

It is not a de Polignac number, because 1168840769 - 2⁸ = 1168840513 is a prime.

It is a super-2 number, since 2×1168840769² = 2732377486553022722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1168840759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584420384 + 584420385.

It is an arithmetic number, because the mean of its divisors is an integer number (584420385).

Almost surely, 2^1168840769 is an apocalyptic number.

It is an amenable number.

1168840769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168840769 is an equidigital number, since it uses as much as digits as its factorization.

1168840769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1168840769 is about 34188.3133395024. The cubic root of 1168840769 is about 1053.3801182174.

The spelling of 1168840769 in words is "one billion, one hundred sixty-eight million, eight hundred forty thousand, seven hundred sixty-nine".