13513525364451 has 8 divisors (see below), whose sum is σ = 20592038650624. Its totient is φ = 7722014493960.

The previous prime is 13513525364447. The next prime is 13513525364491. The reversal of 13513525364451 is 15446352531531.

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

It is not a de Polignac number, because 13513525364451 - 2² = 13513525364447 is a prime.

It is a super-3 number, since 3×13513525364451³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13513525364451.

It is not an unprimeable number, because it can be changed into a prime (13513525364491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321750603895 + ... + 321750603936.

It is an arithmetic number, because the mean of its divisors is an integer number (2574004831328).

Almost surely, 2^{13513525364451} is an apocalyptic number.

13513525364451 is a deficient number, since it is larger than the sum of its proper divisors (7078513286173).

13513525364451 is an equidigital number, since it uses as much as digits as its factorization.

13513525364451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643501207841.

The product of its digits is 3240000, while the sum is 48.

Adding to 13513525364451 its reverse (15446352531531), we get a palindrome (28959877895982).

The spelling of 13513525364451 in words is "thirteen trillion, five hundred thirteen billion, five hundred twenty-five million, three hundred sixty-four thousand, four hundred fifty-one".