3949230129289 has 9 divisors (see below), whose sum is σ = 4168063892583. Its totient is φ = 3741340141152.

The previous prime is 3949230129287. The next prime is 3949230129301. The reversal of 3949230129289 is 9829210329493.

The square root of 3949230129289 is 1987267.

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., 1862337855625 + 2086892273664 = 1364675^2 + 1444608^2 .

It is not a de Polignac number, because 3949230129289 - 2¹ = 3949230129287 is a prime.

It is a super-2 number, since 2×3949230129289² (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 (3949230129287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 37705777 + ... + 37810369.

It is an arithmetic number, because the mean of its divisors is an integer number (463118210287).

Almost surely, 2^{3949230129289} is an apocalyptic number.

3949230129289 is the 1987267-th square number.

3949230129289 is the 993634-th centered octagonal number.

It is an amenable number.

3949230129289 is a deficient number, since it is larger than the sum of its proper divisors (218833763294).

3949230129289 is an frugal number, since it uses more digits than its factorization.

3949230129289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209224 (or 104612 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 3949230129289 in words is "three trillion, nine hundred forty-nine billion, two hundred thirty million, one hundred twenty-nine thousand, two hundred eighty-nine".