13605353745 has 8 divisors (see below), whose sum is σ = 21768566016. Its totient is φ = 7256188656.

The previous prime is 13605353743. The next prime is 13605353761. The reversal of 13605353745 is 54735350631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13605353745 - 2¹ = 13605353743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13605353697 and 13605353706.

It is not an unprimeable number, because it can be changed into a prime (13605353743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453511777 + ... + 453511806.

It is an arithmetic number, because the mean of its divisors is an integer number (2721070752).

Almost surely, 2^13605353745 is an apocalyptic number.

13605353745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13605353745 is a deficient number, since it is larger than the sum of its proper divisors (8163212271).

13605353745 is an equidigital number, since it uses as much as digits as its factorization.

13605353745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907023591.

The product of its (nonzero) digits is 567000, while the sum is 42.

The spelling of 13605353745 in words is "thirteen billion, six hundred five million, three hundred fifty-three thousand, seven hundred forty-five".