1316176421849 has 4 divisors (see below), whose sum is σ = 1316471731764. Its totient is φ = 1315881111936.

The previous prime is 1316176421839. The next prime is 1316176421851. The reversal of 1316176421849 is 9481246716131.

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 588043585600 + 728132836249 = 766840^2 + 853307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316176421849 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 1316176421849.

It is not an unprimeable number, because it can be changed into a prime (1316176421839) 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, 147648272 + ... + 147657185.

It is an arithmetic number, because the mean of its divisors is an integer number (329117932941).

Almost surely, 2^{1316176421849} is an apocalyptic number.

It is an amenable number.

1316176421849 is a deficient number, since it is larger than the sum of its proper divisors (295309915).

1316176421849 is an equidigital number, since it uses as much as digits as its factorization.

1316176421849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295309914.

The product of its digits is 1741824, while the sum is 53.

The spelling of 1316176421849 in words is "one trillion, three hundred sixteen billion, one hundred seventy-six million, four hundred twenty-one thousand, eight hundred forty-nine".