1579112116849 has 4 divisors (see below), whose sum is σ = 1580091109236. Its totient is φ = 1578133124464.

The previous prime is 1579112116819. The next prime is 1579112116873. The reversal of 1579112116849 is 9486112119751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 785338033249 + 793774083600 = 886193^2 + 890940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1579112116849 - 2¹³ = 1579112108657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1579112116849.

It is not an unprimeable number, because it can be changed into a prime (1579112116819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489493774 + ... + 489496999.

It is an arithmetic number, because the mean of its divisors is an integer number (395022777309).

Almost surely, 2^{1579112116849} is an apocalyptic number.

It is an amenable number.

1579112116849 is a deficient number, since it is larger than the sum of its proper divisors (978992387).

1579112116849 is an equidigital number, since it uses as much as digits as its factorization.

1579112116849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978992386.

The product of its digits is 1088640, while the sum is 55.

It can be divided in two parts, 1579112 and 116849, that added together give a palindrome (1695961).

The spelling of 1579112116849 in words is "one trillion, five hundred seventy-nine billion, one hundred twelve million, one hundred sixteen thousand, eight hundred forty-nine".