13087615143827 has 4 divisors (see below), whose sum is σ = 14957274450096. Its totient is φ = 11217955837560.

The previous prime is 13087615143773. The next prime is 13087615143857. The reversal of 13087615143827 is 72834151678031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13087615143827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13087615143857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934829653124 + ... + 934829653137.

It is an arithmetic number, because the mean of its divisors is an integer number (3739318612524).

Almost surely, 2^{13087615143827} is an apocalyptic number.

13087615143827 is a deficient number, since it is larger than the sum of its proper divisors (1869659306269).

13087615143827 is an equidigital number, since it uses as much as digits as its factorization.

13087615143827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869659306268.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 13087615143827 in words is "thirteen trillion, eighty-seven billion, six hundred fifteen million, one hundred forty-three thousand, eight hundred twenty-seven".