64485018 has 64 divisors (see below), whose sum is σ = 156078720. Its totient is φ = 19616256.

The previous prime is 64485017. The next prime is 64485037. The reversal of 64485018 is 81058446.

64485018 is a `hidden beast` number, since 644 + 8 + 5 + 0 + 1 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64485011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67621 + ... + 68567.

It is an arithmetic number, because the mean of its divisors is an integer number (2438730).

Almost surely, 2^64485018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64485018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78039360).

64485018 is an abundant number, since it is smaller than the sum of its proper divisors (91593702).

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

64485018 is a wasteful number, since it uses less digits than its factorization.

64485018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 64485018 is about 8030.2564093558. The cubic root of 64485018 is about 401.0079123154.

The spelling of 64485018 in words is "sixty-four million, four hundred eighty-five thousand, eighteen".