1378534223408 has 20 divisors (see below), whose sum is σ = 2670928314528. Its totient is φ = 689262400320.

The previous prime is 1378534223401. The next prime is 1378534223449. The reversal of 1378534223408 is 8043224358731.

It is not an unprimeable number, because it can be changed into a prime (1378534223401) 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, 4177385 + ... + 4495287.

Almost surely, 2^{1378534223408} is an apocalyptic number.

It is an amenable number.

1378534223408 is a deficient number, since it is larger than the sum of its proper divisors (1292394091120).

1378534223408 is a wasteful number, since it uses less digits than its factorization.

1378534223408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588932 (or 588926 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 1378534223408 in words is "one trillion, three hundred seventy-eight billion, five hundred thirty-four million, two hundred twenty-three thousand, four hundred eight".