18765375363625 has 128 divisors (see below), whose sum is σ = 28990100745216. Its totient is φ = 11954207232000.

The previous prime is 18765375363607. The next prime is 18765375363643. The reversal of 18765375363625 is 52636357356781.

It is an interprime number because it is at equal distance from previous prime (18765375363607) and next prime (18765375363643).

It is a de Polignac number, because none of the positive numbers 2^k-18765375363625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 19420447 + ... + 20363803.

It is an arithmetic number, because the mean of its divisors is an integer number (226485162072).

Almost surely, 2^{18765375363625} is an apocalyptic number.

It is an amenable number.

18765375363625 is a deficient number, since it is larger than the sum of its proper divisors (10224725381591).

18765375363625 is a wasteful number, since it uses less digits than its factorization.

18765375363625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943460 (or 943450 counting only the distinct ones).

The product of its digits is 571536000, while the sum is 67.

The spelling of 18765375363625 in words is "eighteen trillion, seven hundred sixty-five billion, three hundred seventy-five million, three hundred sixty-three thousand, six hundred twenty-five".