64535485794849 has 24 divisors (see below), whose sum is σ = 98918589401632. Its totient is φ = 42023107022400.

The previous prime is 64535485794803. The next prime is 64535485794887. The reversal of 64535485794849 is 94849758453546.

64535485794849 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 5 + 485 + 7 + 94 + 8 + 49 = 666.

64535485794849 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 64535485794849 - 2¹¹ = 64535485792801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64535485794889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3088107352 + ... + 3088128249.

Almost surely, 2^{64535485794849} is an apocalyptic number.

It is an amenable number.

64535485794849 is a deficient number, since it is larger than the sum of its proper divisors (34383103606783).

64535485794849 is an equidigital number, since it uses as much as digits as its factorization.

64535485794849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176235659 (or 6176235647 counting only the distinct ones).

The product of its digits is 20901888000, while the sum is 81.

The spelling of 64535485794849 in words is "sixty-four trillion, five hundred thirty-five billion, four hundred eighty-five million, seven hundred ninety-four thousand, eight hundred forty-nine".