6731506993 has 2 divisors, whose sum is σ = 6731506994. Its totient is φ = 6731506992.

The previous prime is 6731506967. The next prime is 6731507023. The reversal of 6731506993 is 3996051376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4726975009 + 2004531984 = 68753^2 + 44772^2 .

It is a cyclic number.

It is not a de Polignac number, because 6731506993 - 2⁵ = 6731506961 is a prime.

It is not a weakly prime, because it can be changed into another prime (6731506933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3365753496 + 3365753497.

It is an arithmetic number, because the mean of its divisors is an integer number (3365753497).

Almost surely, 2^6731506993 is an apocalyptic number.

It is an amenable number.

6731506993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6731506993 is an equidigital number, since it uses as much as digits as its factorization.

6731506993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 49.

The square root of 6731506993 is about 82045.7615785240. The cubic root of 6731506993 is about 1888.1540904448.

The spelling of 6731506993 in words is "six billion, seven hundred thirty-one million, five hundred six thousand, nine hundred ninety-three".