311144614447 has 12 divisors (see below), whose sum is σ = 319641735816. Its totient is φ = 302842209200.

The previous prime is 311144614381. The next prime is 311144614483. The reversal of 311144614447 is 744416441113.

It is a de Polignac number, because none of the positive numbers 2^k-311144614447 is a prime.

It is a super-5 number, since 5×311144614447⁵ (a number of 59 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311144614747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90913 + ... + 794074.

It is an arithmetic number, because the mean of its divisors is an integer number (26636811318).

Almost surely, 2^311144614447 is an apocalyptic number.

311144614447 is a deficient number, since it is larger than the sum of its proper divisors (8497121369).

311144614447 is an equidigital number, since it uses as much as digits as its factorization.

311144614447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885206 (or 885147 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The spelling of 311144614447 in words is "three hundred eleven billion, one hundred forty-four million, six hundred fourteen thousand, four hundred forty-seven".