13257733780 has 12 divisors (see below), whose sum is σ = 27841240980. Its totient is φ = 5303093504.

The previous prime is 13257733733. The next prime is 13257733793. The reversal of 13257733780 is 8733775231.

13257733780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6484114576 + 6773619204 = 80524^2 + 82302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13257733780.

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 3 ways as a sum of consecutive naturals, for example, 331443325 + ... + 331443364.

It is an arithmetic number, because the mean of its divisors is an integer number (2320103415).

Almost surely, 2^13257733780 is an apocalyptic number.

13257733780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13257733780 is an abundant number, since it is smaller than the sum of its proper divisors (14583507200).

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

13257733780 is a wasteful number, since it uses less digits than its factorization.

13257733780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662886698 (or 662886696 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 13257733780 in words is "thirteen billion, two hundred fifty-seven million, seven hundred thirty-three thousand, seven hundred eighty".