6938121837 has 8 divisors (see below), whose sum is σ = 9252596736. Its totient is φ = 4624530752.

The previous prime is 6938121829. The next prime is 6938121901. The reversal of 6938121837 is 7381218396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6938121837 - 2³ = 6938121829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6938121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202413 + ... + 234194.

It is an arithmetic number, because the mean of its divisors is an integer number (1156574592).

Almost surely, 2^6938121837 is an apocalyptic number.

It is an amenable number.

6938121837 is a deficient number, since it is larger than the sum of its proper divisors (2314474899).

6938121837 is a wasteful number, since it uses less digits than its factorization.

6938121837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441907.

The product of its digits is 435456, while the sum is 48.

The square root of 6938121837 is about 83295.3890500549. The cubic root of 6938121837 is about 1907.2778888101.

The spelling of 6938121837 in words is "six billion, nine hundred thirty-eight million, one hundred twenty-one thousand, eight hundred thirty-seven".