349865497837 has 2 divisors, whose sum is σ = 349865497838.
Its totient is φ = 349865497836.
The previous prime is 349865497799. The next prime is 349865497841. The reversal of 349865497837 is 738794568943.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 265071552201 + 84793945636 = 514851^2 + 291194^2
It is a cyclic number.
It is not a de Polignac number, because 349865497837 - 215 = 349865465069 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 349865497837.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (349865497847) 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 as a sum of consecutive naturals, namely, 174932748918 + 174932748919.
It is an arithmetic number, because the mean of its divisors is an integer number (174932748919).
Almost surely, 2349865497837 is an apocalyptic number.
It is an amenable number.
349865497837 is a deficient number, since it is larger than the sum of its proper divisors (1).
349865497837 is an equidigital number, since it uses as much as digits as its factorization.
349865497837 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1097349120, while the sum is 73.
The spelling of 349865497837 in words is "three hundred forty-nine billion, eight hundred sixty-five million, four hundred ninety-seven thousand, eight hundred thirty-seven".