1378161078813 has 32 divisors (see below), whose sum is σ = 2067781478400. Its totient is φ = 907048881648.

The previous prime is 1378161078797. The next prime is 1378161078817. The reversal of 1378161078813 is 3188701618731.

1378161078813 is a `hidden beast` number, since 1 + 3 + 7 + 8 + 1 + 610 + 7 + 8 + 8 + 13 = 666.

It is not a de Polignac number, because 1378161078813 - 2⁴ = 1378161078797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1378161078813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378161078817) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 24465106 + ... + 24521372.

It is an arithmetic number, because the mean of its divisors is an integer number (64618171200).

Almost surely, 2^{1378161078813} is an apocalyptic number.

It is an amenable number.

1378161078813 is a deficient number, since it is larger than the sum of its proper divisors (689620399587).

1378161078813 is a wasteful number, since it uses less digits than its factorization.

1378161078813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67838 (or 67832 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 1378161078813 in words is "one trillion, three hundred seventy-eight billion, one hundred sixty-one million, seventy-eight thousand, eight hundred thirteen".