64818441 has 16 divisors (see below), whose sum is σ = 96153600. Its totient is φ = 43155504.

The previous prime is 64818421. The next prime is 64818461. The reversal of 64818441 is 14481846.

64818441 is a `hidden beast` number, since 648 + 1 + 8 + 4 + 4 + 1 = 666.

64818441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64818421) and next prime (64818461).

It is not a de Polignac number, because 64818441 - 2²¹ = 62721289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64818396 and 64818405.

It is not an unprimeable number, because it can be changed into a prime (64818421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33595 + ... + 35471.

It is an arithmetic number, because the mean of its divisors is an integer number (6009600).

Almost surely, 2^64818441 is an apocalyptic number.

It is an amenable number.

64818441 is a deficient number, since it is larger than the sum of its proper divisors (31335159).

64818441 is a wasteful number, since it uses less digits than its factorization.

64818441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165 (or 3159 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 64818441 is about 8050.9900633400. The cubic root of 64818441 is about 401.6978683276.

The spelling of 64818441 in words is "sixty-four million, eight hundred eighteen thousand, four hundred forty-one".