1340043400678 has 16 divisors (see below), whose sum is σ = 2013699611520. Its totient is φ = 668810552256.

The previous prime is 1340043400639. The next prime is 1340043400687. The reversal of 1340043400678 is 8760043400431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340043400678.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7768050 + ... + 7938682.

It is an arithmetic number, because the mean of its divisors is an integer number (125856225720).

Almost surely, 2^{1340043400678} is an apocalyptic number.

1340043400678 is a deficient number, since it is larger than the sum of its proper divisors (673656210842).

1340043400678 is a wasteful number, since it uses less digits than its factorization.

1340043400678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177711.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 1340043400678 in words is "one trillion, three hundred forty billion, forty-three million, four hundred thousand, six hundred seventy-eight".