1387513762625 has 16 divisors (see below), whose sum is σ = 1833477012432. Its totient is φ = 1044716243200.

The previous prime is 1387513762573. The next prime is 1387513762627. The reversal of 1387513762625 is 5262673157831.

It can be written as a sum of positive squares in 8 ways, for example, as 137985503296 + 1249528259329 = 371464^2 + 1117823^2 .

It is not a de Polignac number, because 1387513762625 - 2⁶ = 1387513762561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387513762627) 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 15 ways as a sum of consecutive naturals, for example, 326471702 + ... + 326475951.

It is an arithmetic number, because the mean of its divisors is an integer number (114592313277).

Almost surely, 2^{1387513762625} is an apocalyptic number.

It is an amenable number.

1387513762625 is a deficient number, since it is larger than the sum of its proper divisors (445963249807).

1387513762625 is an equidigital number, since it uses as much as digits as its factorization.

1387513762625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652947685 (or 652947675 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 1387513762625 in words is "one trillion, three hundred eighty-seven billion, five hundred thirteen million, seven hundred sixty-two thousand, six hundred twenty-five".