349695901785 has 16 divisors (see below), whose sum is σ = 561593424960. Its totient is φ = 185811153600.

The previous prime is 349695901781. The next prime is 349695901801. The reversal of 349695901785 is 587109596943.

It is not a de Polignac number, because 349695901785 - 2² = 349695901781 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349695901781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43328791 + ... + 43336860.

It is an arithmetic number, because the mean of its divisors is an integer number (35099589060).

Almost surely, 2^349695901785 is an apocalyptic number.

It is an amenable number.

349695901785 is a deficient number, since it is larger than the sum of its proper divisors (211897523175).

349695901785 is a wasteful number, since it uses less digits than its factorization.

349695901785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86665928.

The product of its (nonzero) digits is 73483200, while the sum is 66.

The spelling of 349695901785 in words is "three hundred forty-nine billion, six hundred ninety-five million, nine hundred one thousand, seven hundred eighty-five".