13252959720 has 1536 divisors, whose sum is σ = 63750758400. Its totient is φ = 2372198400.

The previous prime is 13252959701. The next prime is 13252959779. The reversal of 13252959720 is 2795925231.

13252959720 is a `hidden beast` number, since 1 + 3 + 2 + 52 + 9 + 597 + 2 + 0 = 666.

13252959720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 323242900 + ... + 323242940.

It is an arithmetic number, because the mean of its divisors is an integer number (41504400).

Almost surely, 2^13252959720 is an apocalyptic number.

13252959720 is a gapful number since it is divisible by the number (10) 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 13252959720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31875379200).

13252959720 is an abundant number, since it is smaller than the sum of its proper divisors (50497798680).

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

13252959720 is a wasteful number, since it uses less digits than its factorization.

13252959720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 13252959720 in words is "thirteen billion, two hundred fifty-two million, nine hundred fifty-nine thousand, seven hundred twenty".