1340444135648 has 48 divisors (see below), whose sum is σ = 2724316156800. Its totient is φ = 648557299200.

The previous prime is 1340444135603. The next prime is 1340444135651. The reversal of 1340444135648 is 8465314440431.

It is a super-2 number, since 2×1340444135648² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17799578 + ... + 17874726.

It is an arithmetic number, because the mean of its divisors is an integer number (56756586600).

Almost surely, 2^{1340444135648} is an apocalyptic number.

It is an amenable number.

1340444135648 is an abundant number, since it is smaller than the sum of its proper divisors (1383872021152).

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

1340444135648 is a wasteful number, since it uses less digits than its factorization.

1340444135648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93171 (or 93163 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 47.

The spelling of 1340444135648 in words is "one trillion, three hundred forty billion, four hundred forty-four million, one hundred thirty-five thousand, six hundred forty-eight".