64818853 has 12 divisors (see below), whose sum is σ = 74348064. Its totient is φ = 56361800.

The previous prime is 64818851. The next prime is 64818883. The reversal of 64818853 is 35881846.

It is not a de Polignac number, because 64818853 - 2¹ = 64818851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64818851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8863 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (6195672).

Almost surely, 2^64818853 is an apocalyptic number.

It is an amenable number.

64818853 is a deficient number, since it is larger than the sum of its proper divisors (9529211).

64818853 is a wasteful number, since it uses less digits than its factorization.

64818853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23336 (or 23325 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 64818853 is about 8051.0156502146. The cubic root of 64818853 is about 401.6987194185.

The spelling of 64818853 in words is "sixty-four million, eight hundred eighteen thousand, eight hundred fifty-three".