13764838524985 has 8 divisors (see below), whose sum is σ = 16638374159496. Its totient is φ = 10931492200320.

The previous prime is 13764838524971. The next prime is 13764838525003. The reversal of 13764838524985 is 58942583846731.

It can be written as a sum of positive squares in 4 ways, for example, as 4760355966976 + 9004482558009 = 2181824^2 + 3000747^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-13764838524985 is a prime.

It is a super-2 number, since 2×13764838524985² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10047326706 + ... + 10047328075.

It is an arithmetic number, because the mean of its divisors is an integer number (2079796769937).

Almost surely, 2^{13764838524985} is an apocalyptic number.

It is an amenable number.

13764838524985 is a deficient number, since it is larger than the sum of its proper divisors (2873535634511).

13764838524985 is a wasteful number, since it uses less digits than its factorization.

13764838524985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20094654923.

The product of its digits is 1393459200, while the sum is 73.

The spelling of 13764838524985 in words is "thirteen trillion, seven hundred sixty-four billion, eight hundred thirty-eight million, five hundred twenty-four thousand, nine hundred eighty-five".