343744100601721 has 16 divisors (see below), whose sum is σ = 346905043043328. Its totient is φ = 340600364294400.

The previous prime is 343744100601679. The next prime is 343744100601749. The reversal of 343744100601721 is 127106001447343.

It is a cyclic number.

It is not a de Polignac number, because 343744100601721 - 2²⁵ = 343744067047289 is a prime.

It is a super-3 number, since 3×343744100601721³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343744100601791) 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, 52489861 + ... + 58674301.

It is an arithmetic number, because the mean of its divisors is an integer number (21681565190208).

Almost surely, 2^{343744100601721} is an apocalyptic number.

It is an amenable number.

343744100601721 is a deficient number, since it is larger than the sum of its proper divisors (3160942441607).

343744100601721 is a wasteful number, since it uses less digits than its factorization.

343744100601721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185832.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 343744100601721 in words is "three hundred forty-three trillion, seven hundred forty-four billion, one hundred million, six hundred one thousand, seven hundred twenty-one".