1387625138765 has 8 divisors (see below), whose sum is σ = 1678261585920. Its totient is φ = 1101359164752.

The previous prime is 1387625138761. The next prime is 1387625138777. The reversal of 1387625138765 is 5678315267831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1387625138765 - 2² = 1387625138761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1387625138698 and 1387625138707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387625138761) 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 7 ways as a sum of consecutive naturals, for example, 1092617585 + ... + 1092618854.

It is an arithmetic number, because the mean of its divisors is an integer number (209782698240).

Almost surely, 2^{1387625138765} is an apocalyptic number.

It is an amenable number.

1387625138765 is a deficient number, since it is larger than the sum of its proper divisors (290636447155).

1387625138765 is a wasteful number, since it uses less digits than its factorization.

1387625138765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185236571.

The product of its digits is 50803200, while the sum is 62.

The spelling of 1387625138765 in words is "one trillion, three hundred eighty-seven billion, six hundred twenty-five million, one hundred thirty-eight thousand, seven hundred sixty-five".