13511818836 has 36 divisors (see below), whose sum is σ = 34158651072. Its totient is φ = 4503441744.

The previous prime is 13511818787. The next prime is 13511818843. The reversal of 13511818836 is 63881811531.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 13511818791 and 13511818800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465691 + ... + 493853.

Almost surely, 2^13511818836 is an apocalyptic number.

It is an amenable number.

13511818836 is an abundant number, since it is smaller than the sum of its proper divisors (20646832236).

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

13511818836 is a wasteful number, since it uses less digits than its factorization.

13511818836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41500 (or 41495 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The spelling of 13511818836 in words is "thirteen billion, five hundred eleven million, eight hundred eighteen thousand, eight hundred thirty-six".