1340456344543 has 16 divisors (see below), whose sum is σ = 1347440344992. Its totient is φ = 1333493568000.

The previous prime is 1340456344541. The next prime is 1340456344547. The reversal of 1340456344543 is 3454436540431.

It is a cyclic number.

It is not a de Polignac number, because 1340456344543 - 2¹ = 1340456344541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340456344493 and 1340456344502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340456344541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574562205 + ... + 574564537.

It is an arithmetic number, because the mean of its divisors is an integer number (84215021562).

Almost surely, 2^{1340456344543} is an apocalyptic number.

1340456344543 is a deficient number, since it is larger than the sum of its proper divisors (6984000449).

1340456344543 is a wasteful number, since it uses less digits than its factorization.

1340456344543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706.

The product of its (nonzero) digits is 4147200, while the sum is 46.

The spelling of 1340456344543 in words is "one trillion, three hundred forty billion, four hundred fifty-six million, three hundred forty-four thousand, five hundred forty-three".