5944129921 has 4 divisors (see below), whose sum is σ = 5944810500. Its totient is φ = 5943449344.

The previous prime is 5944129907. The next prime is 5944129967. The reversal of 5944129921 is 1299214495.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 846169921 + 5097960000 = 29089^2 + 71400^2 .

It is a cyclic number.

It is not a de Polignac number, because 5944129921 - 2⁹ = 5944129409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5944129991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327016 + ... + 344713.

It is an arithmetic number, because the mean of its divisors is an integer number (1486202625).

Almost surely, 2^5944129921 is an apocalyptic number.

It is an amenable number.

5944129921 is a deficient number, since it is larger than the sum of its proper divisors (680579).

5944129921 is an equidigital number, since it uses as much as digits as its factorization.

5944129921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680578.

The product of its digits is 233280, while the sum is 46.

The square root of 5944129921 is about 77098.1836426773. The cubic root of 5944129921 is about 1811.4628468910.

The spelling of 5944129921 in words is "five billion, nine hundred forty-four million, one hundred twenty-nine thousand, nine hundred twenty-one".