15313747116887 has 4 divisors (see below), whose sum is σ = 15315842888136. Its totient is φ = 15311651345640.

The previous prime is 15313747116839. The next prime is 15313747116893. The reversal of 15313747116887 is 78861174731351.

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

It is a cyclic number.

It is not a de Polignac number, because 15313747116887 - 2⁶ = 15313747116823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313747112887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047874664 + ... + 1047889277.

It is an arithmetic number, because the mean of its divisors is an integer number (3828960722034).

Almost surely, 2^{15313747116887} is an apocalyptic number.

15313747116887 is a deficient number, since it is larger than the sum of its proper divisors (2095771249).

15313747116887 is an equidigital number, since it uses as much as digits as its factorization.

15313747116887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095771248.

The product of its digits is 23708160, while the sum is 62.

The spelling of 15313747116887 in words is "fifteen trillion, three hundred thirteen billion, seven hundred forty-seven million, one hundred sixteen thousand, eight hundred eighty-seven".