427144585856 has 16 divisors (see below), whose sum is σ = 850952104890. Its totient is φ = 213572292864.

The previous prime is 427144585849. The next prime is 427144585873. The reversal of 427144585856 is 658585441724.

It can be written as a sum of positive squares in only one way, i.e., 312212737600 + 114931848256 = 558760^2 + 339016^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 427144585795 and 427144585804.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1668533411 + ... + 1668533666.

Almost surely, 2^427144585856 is an apocalyptic number.

It is an amenable number.

427144585856 is a deficient number, since it is larger than the sum of its proper divisors (423807519034).

427144585856 is an equidigital number, since it uses as much as digits as its factorization.

427144585856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337067091 (or 3337067079 counting only the distinct ones).

The product of its digits is 43008000, while the sum is 59.

The spelling of 427144585856 in words is "four hundred twenty-seven billion, one hundred forty-four million, five hundred eighty-five thousand, eight hundred fifty-six".