6727490917 has 6 divisors (see below), whose sum is σ = 7825856838. Its totient is φ = 5766420744.

The previous prime is 6727490899. The next prime is 6727490953. The reversal of 6727490917 is 7190947276.

It can be written as a sum of positive squares in only one way, i.e., 5655190401 + 1072300516 = 75201^2 + 32746^2 .

It is not a de Polignac number, because 6727490917 - 2¹¹ = 6727488869 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 (6727493917) 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 5 ways as a sum of consecutive naturals, for example, 68647818 + ... + 68647915.

It is an arithmetic number, because the mean of its divisors is an integer number (1304309473).

Almost surely, 2^6727490917 is an apocalyptic number.

It is an amenable number.

6727490917 is a deficient number, since it is larger than the sum of its proper divisors (1098365921).

6727490917 is a wasteful number, since it uses less digits than its factorization.

6727490917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137295747 (or 137295740 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 52.

The square root of 6727490917 is about 82021.2833171976. The cubic root of 6727490917 is about 1887.7785193254.

The spelling of 6727490917 in words is "six billion, seven hundred twenty-seven million, four hundred ninety thousand, nine hundred seventeen".