349865497838 has 16 divisors (see below), whose sum is σ = 526256560896. Its totient is φ = 174446736480.

The previous prime is 349865497837. The next prime is 349865497841. The reversal of 349865497838 is 838794568943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349865497837) 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 in 7 ways as a sum of consecutive naturals, for example, 11542643 + ... + 11572913.

It is an arithmetic number, because the mean of its divisors is an integer number (32891035056).

Almost surely, 2^349865497838 is an apocalyptic number.

349865497838 is a deficient number, since it is larger than the sum of its proper divisors (176391063058).

349865497838 is a wasteful number, since it uses less digits than its factorization.

349865497838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46139.

The product of its digits is 1254113280, while the sum is 74.

The spelling of 349865497838 in words is "three hundred forty-nine billion, eight hundred sixty-five million, four hundred ninety-seven thousand, eight hundred thirty-eight".