13518808852 has 12 divisors (see below), whose sum is σ = 23689008756. Its totient is φ = 6750520640.

The previous prime is 13518808847. The next prime is 13518808859. The reversal of 13518808852 is 25880881531.

It can be written as a sum of positive squares in 2 ways, for example, as 1216893456 + 12301915396 = 34884^2 + 110914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13518808796 and 13518808805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13518808859) 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, 2217523 + ... + 2223610.

It is an arithmetic number, because the mean of its divisors is an integer number (1974084063).

Almost surely, 2^13518808852 is an apocalyptic number.

It is an amenable number.

13518808852 is a deficient number, since it is larger than the sum of its proper divisors (10170199904).

13518808852 is a wasteful number, since it uses less digits than its factorization.

13518808852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441898 (or 4441896 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 49.

The spelling of 13518808852 in words is "thirteen billion, five hundred eighteen million, eight hundred eight thousand, eight hundred fifty-two".