64818852 has 24 divisors (see below), whose sum is σ = 172850496. Its totient is φ = 18519648.

The previous prime is 64818851. The next prime is 64818883. The reversal of 64818852 is 25881846.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 7 ways as a sum of consecutive naturals, for example, 385743 + ... + 385910.

It is an arithmetic number, because the mean of its divisors is an integer number (7202104).

Almost surely, 2^64818852 is an apocalyptic number.

It is an amenable number.

64818852 is an abundant number, since it is smaller than the sum of its proper divisors (108031644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64818852 is a wasteful number, since it uses less digits than its factorization.

64818852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771667 (or 771665 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 64818852 is about 8051.0155881106. The cubic root of 64818852 is about 401.6987173528.

The spelling of 64818852 in words is "sixty-four million, eight hundred eighteen thousand, eight hundred fifty-two".