1158247817867 has 8 divisors (see below), whose sum is σ = 1323861926112. Its totient is φ = 992671243200.

The previous prime is 1158247817851. The next prime is 1158247817897. The reversal of 1158247817867 is 7687187428511.

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

It is not a de Polignac number, because 1158247817867 - 2⁴ = 1158247817851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158247817897) 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, 9317234 + ... + 9440727.

It is an arithmetic number, because the mean of its divisors is an integer number (165482740764).

Almost surely, 2^{1158247817867} is an apocalyptic number.

1158247817867 is a deficient number, since it is larger than the sum of its proper divisors (165614108245).

1158247817867 is an equidigital number, since it uses as much as digits as its factorization.

1158247817867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18766789.

The product of its digits is 42147840, while the sum is 65.

The spelling of 1158247817867 in words is "one trillion, one hundred fifty-eight billion, two hundred forty-seven million, eight hundred seventeen thousand, eight hundred sixty-seven".