1340745148438 has 8 divisors (see below), whose sum is σ = 2075992488000. Its totient is φ = 648747652440.

The previous prime is 1340745148427. The next prime is 1340745148447. The reversal of 1340745148438 is 8348415470431.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 10812460813 + ... + 10812460936.

It is an arithmetic number, because the mean of its divisors is an integer number (259499061000).

Almost surely, 2^{1340745148438} is an apocalyptic number.

1340745148438 is a deficient number, since it is larger than the sum of its proper divisors (735247339562).

1340745148438 is a wasteful number, since it uses less digits than its factorization.

1340745148438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21624921782.

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 1340745148438 in words is "one trillion, three hundred forty billion, seven hundred forty-five million, one hundred forty-eight thousand, four hundred thirty-eight".