13318986147536 has 10 divisors (see below), whose sum is σ = 25805535660882. Its totient is φ = 6659493073760.

The previous prime is 13318986147529. The next prime is 13318986147617. The reversal of 13318986147536 is 63574168981331.

It can be written as a sum of positive squares in only one way, i.e., 12633475009600 + 685511137936 = 3554360^2 + 827956^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 416218317095 + ... + 416218317126.

Almost surely, 2^{13318986147536} is an apocalyptic number.

13318986147536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13318986147536 is a deficient number, since it is larger than the sum of its proper divisors (12486549513346).

13318986147536 is an equidigital number, since it uses as much as digits as its factorization.

13318986147536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832436634229 (or 832436634223 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 65.

The spelling of 13318986147536 in words is "thirteen trillion, three hundred eighteen billion, nine hundred eighty-six million, one hundred forty-seven thousand, five hundred thirty-six".