311449409847 has 54 divisors (see below), whose sum is σ = 476418675096. Its totient is φ = 195692056560.

The previous prime is 311449409837. The next prime is 311449409861. The reversal of 311449409847 is 748904944113.

311449409847 is a `hidden beast` number, since 3 + 114 + 49 + 409 + 84 + 7 = 666.

It is not a de Polignac number, because 311449409847 - 2²³ = 311441021239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311449409793 and 311449409802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311449409807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 634316272 + ... + 634316762.

Almost surely, 2^311449409847 is an apocalyptic number.

311449409847 is a deficient number, since it is larger than the sum of its proper divisors (164969265249).

311449409847 is an frugal number, since it uses more digits than its factorization.

311449409847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 311449409847 in words is "three hundred eleven billion, four hundred forty-nine million, four hundred nine thousand, eight hundred forty-seven".