13518809436 has 96 divisors (see below), whose sum is σ = 35408217600. Its totient is φ = 3978374400.

The previous prime is 13518809407. The next prime is 13518809497. The reversal of 13518809436 is 63490881531.

It is a super-3 number, since 3×13518809436³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2923206 + ... + 2927826.

It is an arithmetic number, because the mean of its divisors is an integer number (368835600).

Almost surely, 2^13518809436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13518809436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17704108800).

13518809436 is an abundant number, since it is smaller than the sum of its proper divisors (21889408164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13518809436 is a wasteful number, since it uses less digits than its factorization.

13518809436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 13518809436 in words is "thirteen billion, five hundred eighteen million, eight hundred nine thousand, four hundred thirty-six".