1378540168325 has 12 divisors (see below), whose sum is σ = 1725365417760. Its totient is φ = 1092525290160.

The previous prime is 1378540168237. The next prime is 1378540168337. The reversal of 1378540168325 is 5238610458731.

It is a de Polignac number, because none of the positive numbers 2^k-1378540168325 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 257668385 + ... + 257673734.

It is an arithmetic number, because the mean of its divisors is an integer number (143780451480).

Almost surely, 2^{1378540168325} is an apocalyptic number.

It is an amenable number.

1378540168325 is a deficient number, since it is larger than the sum of its proper divisors (346825249435).

1378540168325 is a wasteful number, since it uses less digits than its factorization.

1378540168325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515342236 (or 515342231 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 1378540168325 in words is "one trillion, three hundred seventy-eight billion, five hundred forty million, one hundred sixty-eight thousand, three hundred twenty-five".