13280311845 has 54 divisors (see below), whose sum is σ = 23650790514. Its totient is φ = 6893589120.

The previous prime is 13280311777. The next prime is 13280311853. The reversal of 13280311845 is 54811308231.

13280311845 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 3 ways, for example, as 764743716 + 12515568129 = 27654^2 + 111873^2 .

It is not a de Polignac number, because 13280311845 - 2¹⁰ = 13280310821 is a prime.

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 53 ways as a sum of consecutive naturals, for example, 31695046 + ... + 31695464.

Almost surely, 2^13280311845 is an apocalyptic number.

13280311845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13280311845 is a deficient number, since it is larger than the sum of its proper divisors (10370478669).

13280311845 is an frugal number, since it uses more digits than its factorization.

13280311845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 13280311845 in words is "thirteen billion, two hundred eighty million, three hundred eleven thousand, eight hundred forty-five".