6746997731 has 2 divisors, whose sum is σ = 6746997732. Its totient is φ = 6746997730.

The previous prime is 6746997713. The next prime is 6746997769. The reversal of 6746997731 is 1377996476.

Together with previous prime (6746997713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6746997731 - 2⁶ = 6746997667 is a prime.

It is a super-2 number, since 2×6746997731² = 91043956764238296722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6746907731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373498865 + 3373498866.

It is an arithmetic number, because the mean of its divisors is an integer number (3373498866).

Almost surely, 2^6746997731 is an apocalyptic number.

6746997731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6746997731 is an equidigital number, since it uses as much as digits as its factorization.

6746997731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12002256, while the sum is 59.

The square root of 6746997731 is about 82140.1103663734. The cubic root of 6746997731 is about 1889.6013390748.

The spelling of 6746997731 in words is "six billion, seven hundred forty-six million, nine hundred ninety-seven thousand, seven hundred thirty-one".