1158194966857 has 8 divisors (see below), whose sum is σ = 1189374762240. Its totient is φ = 1127428149120.

The previous prime is 1158194966839. The next prime is 1158194966893. The reversal of 1158194966857 is 7586694918511.

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 1158194966857 - 2³⁹ = 608439152969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158194966897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103238728 + ... + 103249945.

It is an arithmetic number, because the mean of its divisors is an integer number (148671845280).

Almost surely, 2^{1158194966857} is an apocalyptic number.

It is an amenable number.

1158194966857 is a deficient number, since it is larger than the sum of its proper divisors (31179795383).

1158194966857 is an equidigital number, since it uses as much as digits as its factorization.

1158194966857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206488823.

The product of its digits is 130636800, while the sum is 70.

The spelling of 1158194966857 in words is "one trillion, one hundred fifty-eight billion, one hundred ninety-four million, nine hundred sixty-six thousand, eight hundred fifty-seven".