13626557952 has 160 divisors (see below), whose sum is σ = 42501279744. Its totient is φ = 3798220800.

The previous prime is 13626557939. The next prime is 13626557981. The reversal of 13626557952 is 25975562631.

It is a junction number, because it is equal to n+sod(n) for n = 13626557895 and 13626557904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425377 + ... + 456287.

Almost surely, 2^13626557952 is an apocalyptic number.

13626557952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13626557952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21250639872).

13626557952 is an abundant number, since it is smaller than the sum of its proper divisors (28874721792).

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

13626557952 is an equidigital number, since it uses as much as digits as its factorization.

13626557952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30980 (or 30964 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 51.

The spelling of 13626557952 in words is "thirteen billion, six hundred twenty-six million, five hundred fifty-seven thousand, nine hundred fifty-two".