1168458213587 has 4 divisors (see below), whose sum is σ = 1335380815536. Its totient is φ = 1001535611640.

The previous prime is 1168458213583. The next prime is 1168458213589. The reversal of 1168458213587 is 7853128548611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1168458213587 - 2² = 1168458213583 is a prime.

It is a super-2 number, since 2×1168458213587² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168458213583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83461300964 + ... + 83461300977.

It is an arithmetic number, because the mean of its divisors is an integer number (333845203884).

Almost surely, 2^{1168458213587} is an apocalyptic number.

1168458213587 is a deficient number, since it is larger than the sum of its proper divisors (166922601949).

1168458213587 is an equidigital number, since it uses as much as digits as its factorization.

1168458213587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166922601948.

The product of its digits is 12902400, while the sum is 59.

The spelling of 1168458213587 in words is "one trillion, one hundred sixty-eight billion, four hundred fifty-eight million, two hundred thirteen thousand, five hundred eighty-seven".