64854248448519 has 16 divisors (see below), whose sum is σ = 96181825731840. Its totient is φ = 43190509685400.

The previous prime is 64854248448511. The next prime is 64854248448589. The reversal of 64854248448519 is 91584484245846.

64854248448519 is a `hidden beast` number, since 6 + 4 + 8 + 5 + 4 + 24 + 84 + 4 + 8 + 519 = 666.

64854248448519 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 64854248448519 - 2³ = 64854248448511 is a prime.

It is a super-2 number, since 2×64854248448519² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64854248448511) 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 15 ways as a sum of consecutive naturals, for example, 1268194707 + ... + 1268245844.

It is an arithmetic number, because the mean of its divisors is an integer number (6011364108240).

Almost surely, 2^{64854248448519} is an apocalyptic number.

64854248448519 is a deficient number, since it is larger than the sum of its proper divisors (31327577283321).

64854248448519 is a wasteful number, since it uses less digits than its factorization.

64854248448519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536441507 (or 2536441501 counting only the distinct ones).

The product of its digits is 1415577600, while the sum is 72.

The spelling of 64854248448519 in words is "sixty-four trillion, eight hundred fifty-four billion, two hundred forty-eight million, four hundred forty-eight thousand, five hundred nineteen".