3439878705481 has 9 divisors (see below), whose sum is σ = 3455788852071. Its totient is φ = 3424041499032.

The previous prime is 3439878705391. The next prime is 3439878705503. The reversal of 3439878705481 is 1845078789343.

The square root of 3439878705481 is 1854691.

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

It can be written as a sum of positive squares in only one way, i.e., 3380578663225 + 59300042256 = 1838635^2 + 243516^2 .

It is not a de Polignac number, because 3439878705481 - 2¹⁹ = 3439878181193 is a prime.

It is a super-2 number, since 2×3439878705481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3439078705481) 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, 413591935 + ... + 413600251.

It is an arithmetic number, because the mean of its divisors is an integer number (383976539119).

Almost surely, 2^{3439878705481} is an apocalyptic number.

3439878705481 is the 1854691-st square number.

3439878705481 is the 927346-th centered octagonal number.

It is an amenable number.

3439878705481 is a deficient number, since it is larger than the sum of its proper divisors (15910146590).

3439878705481 is an frugal number, since it uses more digits than its factorization.

3439878705481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17080 (or 8540 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 67.

The spelling of 3439878705481 in words is "three trillion, four hundred thirty-nine billion, eight hundred seventy-eight million, seven hundred five thousand, four hundred eighty-one".