13373706528 has 720 divisors, whose sum is σ = 50867974080. Its totient is φ = 3355499520.

The previous prime is 13373706503. The next prime is 13373706539. The reversal of 13373706528 is 82560737331.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 226672963 + ... + 226673021.

It is an arithmetic number, because the mean of its divisors is an integer number (70649964).

Almost surely, 2^13373706528 is an apocalyptic number.

13373706528 is a gapful number since it is divisible by the number (18) 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 13373706528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25433987040).

13373706528 is an abundant number, since it is smaller than the sum of its proper divisors (37494267552).

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

13373706528 is a wasteful number, since it uses less digits than its factorization.

13373706528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 13373706528 in words is "thirteen billion, three hundred seventy-three million, seven hundred six thousand, five hundred twenty-eight".