341909559821 has 16 divisors (see below), whose sum is σ = 349308348480. Its totient is φ = 334592590080.

The previous prime is 341909559721. The next prime is 341909559839. The reversal of 341909559821 is 128955909143.

It is a cyclic number.

It is not a de Polignac number, because 341909559821 - 2¹⁰ = 341909558797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341909559841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16318370 + ... + 16339308.

It is an arithmetic number, because the mean of its divisors is an integer number (21831771780).

Almost surely, 2^341909559821 is an apocalyptic number.

It is an amenable number.

341909559821 is a deficient number, since it is larger than the sum of its proper divisors (7398788659).

341909559821 is a wasteful number, since it uses less digits than its factorization.

341909559821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22876.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 341909559821 in words is "three hundred forty-one billion, nine hundred nine million, five hundred fifty-nine thousand, eight hundred twenty-one".