6767071440643 has 2 divisors, whose sum is σ = 6767071440644. Its totient is φ = 6767071440642.

The previous prime is 6767071440629. The next prime is 6767071440673. The reversal of 6767071440643 is 3460441707676.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6767071440643 - 2²¹ = 6767069343491 is a prime.

It is a super-2 number, since 2×6767071440643² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6767071440673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383535720321 + 3383535720322.

It is an arithmetic number, because the mean of its divisors is an integer number (3383535720322).

Almost surely, 2^{6767071440643} is an apocalyptic number.

6767071440643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6767071440643 is an equidigital number, since it uses as much as digits as its factorization.

6767071440643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14224896, while the sum is 55.

The spelling of 6767071440643 in words is "six trillion, seven hundred sixty-seven billion, seventy-one million, four hundred forty thousand, six hundred forty-three".