64536918 has 16 divisors (see below), whose sum is σ = 129377136. Its totient is φ = 21461760.

The previous prime is 64536907. The next prime is 64536929. The reversal of 64536918 is 81963546.

64536918 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 (64536907) and next prime (64536929).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64536918.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9823 + ... + 15018.

It is an arithmetic number, because the mean of its divisors is an integer number (8086071).

Almost surely, 2^64536918 is an apocalyptic number.

64536918 is an abundant number, since it is smaller than the sum of its proper divisors (64840218).

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

64536918 is a wasteful number, since it uses less digits than its factorization.

64536918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25279.

The product of its digits is 155520, while the sum is 42.

The square root of 64536918 is about 8033.4872875981. The cubic root of 64536918 is about 401.1154656163.

The spelling of 64536918 in words is "sixty-four million, five hundred thirty-six thousand, nine hundred eighteen".