1340703626663 has 4 divisors (see below), whose sum is σ = 1344501654288. Its totient is φ = 1336905599040.

The previous prime is 1340703626659. The next prime is 1340703626693. The reversal of 1340703626663 is 3666263070431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1340703626663 - 2² = 1340703626659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340703626693) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1899013283 + ... + 1899013988.

It is an arithmetic number, because the mean of its divisors is an integer number (336125413572).

Almost surely, 2^{1340703626663} is an apocalyptic number.

1340703626663 is a deficient number, since it is larger than the sum of its proper divisors (3798027625).

1340703626663 is an equidigital number, since it uses as much as digits as its factorization.

1340703626663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798027624.

The product of its (nonzero) digits is 1959552, while the sum is 47.

The spelling of 1340703626663 in words is "one trillion, three hundred forty billion, seven hundred three million, six hundred twenty-six thousand, six hundred sixty-three".