6703749121 has 4 divisors (see below), whose sum is σ = 6711836500. Its totient is φ = 6695661744.

The previous prime is 6703749113. The next prime is 6703749131. The reversal of 6703749121 is 1219473076.

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 4430366721 + 2273382400 = 66561^2 + 47680^2 .

It is a cyclic number.

It is not a de Polignac number, because 6703749121 - 2³ = 6703749113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6703749131) 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, 4042446 + ... + 4044103.

It is an arithmetic number, because the mean of its divisors is an integer number (1677959125).

Almost surely, 2^6703749121 is an apocalyptic number.

It is an amenable number.

6703749121 is a deficient number, since it is larger than the sum of its proper divisors (8087379).

6703749121 is an equidigital number, since it uses as much as digits as its factorization.

6703749121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087378.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 6703749121 is about 81876.4259173543. The cubic root of 6703749121 is about 1885.5552001061. Note that the first 3 decimals are identical.

The spelling of 6703749121 in words is "six billion, seven hundred three million, seven hundred forty-nine thousand, one hundred twenty-one".