4339676409721 has 9 divisors (see below), whose sum is σ = 4346839793349. Its totient is φ = 4332524821884.

The previous prime is 4339676409703. The next prime is 4339676409743. The reversal of 4339676409721 is 1279046769334.

The square root of 4339676409721 is 2083189.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4339676409721 - 2¹⁷ = 4339676278649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4339676409721.

It is not an unprimeable number, because it can be changed into a prime (4339676409701) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1639468420 + ... + 1639471066.

It is an arithmetic number, because the mean of its divisors is an integer number (482982199261).

Almost surely, 2^{4339676409721} is an apocalyptic number.

4339676409721 is the 2083189-th square number.

4339676409721 is the 1041595-th centered octagonal number.

It is an amenable number.

4339676409721 is a deficient number, since it is larger than the sum of its proper divisors (7163383628).

4339676409721 is an frugal number, since it uses more digits than its factorization.

4339676409721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868 (or 3434 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 61.

The spelling of 4339676409721 in words is "four trillion, three hundred thirty-nine billion, six hundred seventy-six million, four hundred nine thousand, seven hundred twenty-one".