13608642435 has 32 divisors (see below), whose sum is σ = 21881855808. Its totient is φ = 7222026240.

The previous prime is 13608642431. The next prime is 13608642499. The reversal of 13608642435 is 53424680631.

13608642435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13608642435 - 2² = 13608642431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13608642431) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2756229 + ... + 2761161.

It is an arithmetic number, because the mean of its divisors is an integer number (683807994).

Almost surely, 2^13608642435 is an apocalyptic number.

13608642435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13608642435 is a deficient number, since it is larger than the sum of its proper divisors (8273213373).

13608642435 is a wasteful number, since it uses less digits than its factorization.

13608642435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 13608642435 in words is "thirteen billion, six hundred eight million, six hundred forty-two thousand, four hundred thirty-five".