1340473405648 has 40 divisors (see below), whose sum is σ = 2803924427976. Its totient is φ = 617137152000.

The previous prime is 1340473405613. The next prime is 1340473405657. The reversal of 1340473405648 is 8465043740431.

It can be written as a sum of positive squares in 4 ways, for example, as 71092623424 + 1269380782224 = 266632^2 + 1126668^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7952233 + ... + 8119048.

Almost surely, 2^{1340473405648} is an apocalyptic number.

It is an amenable number.

1340473405648 is an abundant number, since it is smaller than the sum of its proper divisors (1463451022328).

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

1340473405648 is a wasteful number, since it uses less digits than its factorization.

1340473405648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071703 (or 16071697 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 1340473405648 in words is "one trillion, three hundred forty billion, four hundred seventy-three million, four hundred five thousand, six hundred forty-eight".