349312209405 has 8 divisors (see below), whose sum is σ = 558899535072. Its totient is φ = 186299845008.

The previous prime is 349312209401. The next prime is 349312209409. The reversal of 349312209405 is 504902213943.

It is an interprime number because it is at equal distance from previous prime (349312209401) and next prime (349312209409).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349312209405 - 2² = 349312209401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349312209401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11643740299 + ... + 11643740328.

It is an arithmetic number, because the mean of its divisors is an integer number (69862441884).

Almost surely, 2^349312209405 is an apocalyptic number.

It is an amenable number.

349312209405 is a deficient number, since it is larger than the sum of its proper divisors (209587325667).

349312209405 is a wasteful number, since it uses less digits than its factorization.

349312209405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23287480635.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 349312209405 in words is "three hundred forty-nine billion, three hundred twelve million, two hundred nine thousand, four hundred five".