13445657405 has 8 divisors (see below), whose sum is σ = 16339027200. Its totient is φ = 10620367056.

The previous prime is 13445657387. The next prime is 13445657413. The reversal of 13445657405 is 50475654431.

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

It is a cyclic number.

It is not a de Polignac number, because 13445657405 - 2¹⁸ = 13445395261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17019425 + ... + 17020214.

It is an arithmetic number, because the mean of its divisors is an integer number (2042378400).

Almost surely, 2^13445657405 is an apocalyptic number.

It is an amenable number.

13445657405 is a deficient number, since it is larger than the sum of its proper divisors (2893369795).

13445657405 is an equidigital number, since it uses as much as digits as its factorization.

13445657405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34039723.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 13445657405 in words is "thirteen billion, four hundred forty-five million, six hundred fifty-seven thousand, four hundred five".