1168536857 has 8 divisors (see below), whose sum is σ = 1173404232. Its totient is φ = 1163680000.

The previous prime is 1168536851. The next prime is 1168536937. The reversal of 1168536857 is 7586358611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 734897881 + 433638976 = 27109^2 + 20824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1168536857 - 2⁶ = 1168536793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168536851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279023 + ... + 283179.

It is an arithmetic number, because the mean of its divisors is an integer number (146675529).

Almost surely, 2^1168536857 is an apocalyptic number.

It is an amenable number.

1168536857 is a deficient number, since it is larger than the sum of its proper divisors (4867375).

1168536857 is an equidigital number, since it uses as much as digits as its factorization.

1168536857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259.

The product of its digits is 1209600, while the sum is 50.

The square root of 1168536857 is about 34183.8683738397. The cubic root of 1168536857 is about 1053.2888133345.

The spelling of 1168536857 in words is "one billion, one hundred sixty-eight million, five hundred thirty-six thousand, eight hundred fifty-seven".