1378869355436 has 12 divisors (see below), whose sum is σ = 2436912673440. Its totient is φ = 682608591600.

The previous prime is 1378869355427. The next prime is 1378869355439. The reversal of 1378869355436 is 6345539688731.

It is not an unprimeable number, because it can be changed into a prime (1378869355439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706521076 + ... + 1706521883.

It is an arithmetic number, because the mean of its divisors is an integer number (203076056120).

Almost surely, 2^{1378869355436} is an apocalyptic number.

It is an amenable number.

1378869355436 is a deficient number, since it is larger than the sum of its proper divisors (1058043318004).

1378869355436 is a wasteful number, since it uses less digits than its factorization.

1378869355436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413043064 (or 3413043062 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 68.

The spelling of 1378869355436 in words is "one trillion, three hundred seventy-eight billion, eight hundred sixty-nine million, three hundred fifty-five thousand, four hundred thirty-six".