349865497847 has 2 divisors, whose sum is σ = 349865497848. Its totient is φ = 349865497846.

The previous prime is 349865497841. The next prime is 349865497853. The reversal of 349865497847 is 748794568943.

It is a balanced prime because it is at equal distance from previous prime (349865497841) and next prime (349865497853).

It is a cyclic number.

It is not a de Polignac number, because 349865497847 - 2³² = 345570530551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349865497841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174932748923 + 174932748924.

It is an arithmetic number, because the mean of its divisors is an integer number (174932748924).

Almost surely, 2^349865497847 is an apocalyptic number.

349865497847 is a deficient number, since it is larger than the sum of its proper divisors (1).

349865497847 is an equidigital number, since it uses as much as digits as its factorization.

349865497847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1463132160, while the sum is 74.

The spelling of 349865497847 in words is "three hundred forty-nine billion, eight hundred sixty-five million, four hundred ninety-seven thousand, eight hundred forty-seven".