13250423505536 has 128 divisors (see below), whose sum is σ = 30921818290560. Its totient is φ = 5538606796800.

The previous prime is 13250423505499. The next prime is 13250423505581. The reversal of 13250423505536 is 63550532405231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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, 4970546 + ... + 7155918.

It is an arithmetic number, because the mean of its divisors is an integer number (241576705395).

Almost surely, 2^{13250423505536} is an apocalyptic number.

13250423505536 is a gapful number since it is divisible by the number (16) 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 13250423505536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15460909145280).

13250423505536 is an abundant number, since it is smaller than the sum of its proper divisors (17671394785024).

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

13250423505536 is a wasteful number, since it uses less digits than its factorization.

13250423505536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185562 (or 2185550 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 44.

The spelling of 13250423505536 in words is "thirteen trillion, two hundred fifty billion, four hundred twenty-three million, five hundred five thousand, five hundred thirty-six".