6938321429 has 4 divisors (see below), whose sum is σ = 7472038476. Its totient is φ = 6404604384.

The previous prime is 6938321419. The next prime is 6938321441. The reversal of 6938321429 is 9241238396.

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 638724529 + 6299596900 = 25273^2 + 79370^2 .

It is a cyclic number.

It is not a de Polignac number, because 6938321429 - 2⁴ = 6938321413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6938321419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266858504 + ... + 266858529.

It is an arithmetic number, because the mean of its divisors is an integer number (1868009619).

Almost surely, 2^6938321429 is an apocalyptic number.

It is an amenable number.

6938321429 is a deficient number, since it is larger than the sum of its proper divisors (533717047).

6938321429 is a wasteful number, since it uses less digits than its factorization.

6938321429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533717046.

The product of its digits is 559872, while the sum is 47.

The square root of 6938321429 is about 83296.5871389699. The cubic root of 6938321429 is about 1907.2961778018.

The spelling of 6938321429 in words is "six billion, nine hundred thirty-eight million, three hundred twenty-one thousand, four hundred twenty-nine".