1387155384265 has 32 divisors (see below), whose sum is σ = 2083747783680. Its totient is φ = 864369429504.

The previous prime is 1387155384253. The next prime is 1387155384361. The reversal of 1387155384265 is 5624835517831.

It is a de Polignac number, because none of the positive numbers 2^k-1387155384265 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40178497 + ... + 40213006.

It is an arithmetic number, because the mean of its divisors is an integer number (65117118240).

Almost surely, 2^{1387155384265} is an apocalyptic number.

It is an amenable number.

1387155384265 is a deficient number, since it is larger than the sum of its proper divisors (696592399415).

1387155384265 is a wasteful number, since it uses less digits than its factorization.

1387155384265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80391561.

The product of its digits is 24192000, while the sum is 58.

The spelling of 1387155384265 in words is "one trillion, three hundred eighty-seven billion, one hundred fifty-five million, three hundred eighty-four thousand, two hundred sixty-five".