13659012052 has 108 divisors (see below), whose sum is σ = 29008691712. Its totient is φ = 5610578400.

The previous prime is 13659012007. The next prime is 13659012067. The reversal of 13659012052 is 25021095631.

It is a super-2 number, since 2×13659012052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13659011999 and 13659012017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23920927 + ... + 23921497.

Almost surely, 2^13659012052 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 13659012052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14504345856).

13659012052 is an abundant number, since it is smaller than the sum of its proper divisors (15349679660).

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

13659012052 is a wasteful number, since it uses less digits than its factorization.

13659012052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 13659012052 in words is "thirteen billion, six hundred fifty-nine million, twelve thousand, fifty-two".