1340468140667 has 2 divisors, whose sum is σ = 1340468140668. Its totient is φ = 1340468140666.

The previous prime is 1340468140643. The next prime is 1340468140673. The reversal of 1340468140667 is 7660418640431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340468140667 - 2⁶ = 1340468140603 is a prime.

It is a super-2 number, since 2×1340468140667² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1340468140967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670234070333 + 670234070334.

It is an arithmetic number, because the mean of its divisors is an integer number (670234070334).

Almost surely, 2^{1340468140667} is an apocalyptic number.

1340468140667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340468140667 is an equidigital number, since it uses as much as digits as its factorization.

1340468140667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 1340468140667 in words is "one trillion, three hundred forty billion, four hundred sixty-eight million, one hundred forty thousand, six hundred sixty-seven".