1340468140668 has 48 divisors (see below), whose sum is σ = 3297514563840. Its totient is φ = 422645299200.

The previous prime is 1340468140667. The next prime is 1340468140673. The reversal of 1340468140668 is 8660418640431.

It is a super-2 number, since 2×1340468140668² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340468140668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340468140667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4439848 + ... + 4732143.

It is an arithmetic number, because the mean of its divisors is an integer number (68698220080).

Almost surely, 2^{1340468140668} is an apocalyptic number.

It is an amenable number.

1340468140668 is an abundant number, since it is smaller than the sum of its proper divisors (1957046423172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340468140668 is a wasteful number, since it uses less digits than its factorization.

1340468140668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9172658 (or 9172656 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 1340468140668 in words is "one trillion, three hundred forty billion, four hundred sixty-eight million, one hundred forty thousand, six hundred sixty-eight".