1346666667979 has 2 divisors, whose sum is σ = 1346666667980. Its totient is φ = 1346666667978.

The previous prime is 1346666667971. The next prime is 1346666668073. The reversal of 1346666667979 is 9797666666431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1346666667979 - 2³ = 1346666667971 is a prime.

It is a super-2 number, since 2×1346666667979² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1346666667971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673333333989 + 673333333990.

It is an arithmetic number, because the mean of its divisors is an integer number (673333333990).

Almost surely, 2^{1346666667979} is an apocalyptic number.

1346666667979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346666667979 is an equidigital number, since it uses as much as digits as its factorization.

1346666667979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222131968, while the sum is 76.

The spelling of 1346666667979 in words is "one trillion, three hundred forty-six billion, six hundred sixty-six million, six hundred sixty-seven thousand, nine hundred seventy-nine".