311753905849 has 2 divisors, whose sum is σ = 311753905850. Its totient is φ = 311753905848.

The previous prime is 311753905847. The next prime is 311753905861. The reversal of 311753905849 is 948509357113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300397167225 + 11356738624 = 548085^2 + 106568^2 .

It is a cyclic number.

It is not a de Polignac number, because 311753905849 - 2¹ = 311753905847 is a prime.

Together with 311753905847, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 311753905849.

It is not a weakly prime, because it can be changed into another prime (311753905847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155876952924 + 155876952925.

It is an arithmetic number, because the mean of its divisors is an integer number (155876952925).

Almost surely, 2^311753905849 is an apocalyptic number.

It is an amenable number.

311753905849 is a deficient number, since it is larger than the sum of its proper divisors (1).

311753905849 is an equidigital number, since it uses as much as digits as its factorization.

311753905849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 311753905849 in words is "three hundred eleven billion, seven hundred fifty-three million, nine hundred five thousand, eight hundred forty-nine".