13445567748 has 36 divisors (see below), whose sum is σ = 34042548540. Its totient is φ = 4474584576.

The previous prime is 13445567701. The next prime is 13445567791. The reversal of 13445567748 is 84776554431.

13445567748 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 5 + 567 + 74 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7180528644 + 6265039104 = 84738^2 + 79152^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 13445567694 and 13445567703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280453 + ... + 324876.

Almost surely, 2^13445567748 is an apocalyptic number.

13445567748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13445567748 is an abundant number, since it is smaller than the sum of its proper divisors (20596980792).

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

13445567748 is a wasteful number, since it uses less digits than its factorization.

13445567748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605956 (or 605951 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 13445567748 in words is "thirteen billion, four hundred forty-five million, five hundred sixty-seven thousand, seven hundred forty-eight".