64536848201988 has 72 divisors (see below), whose sum is σ = 164292759478848. Its totient is φ = 21360094348608.

The previous prime is 64536848201971. The next prime is 64536848201989. The reversal of 64536848201988 is 88910284863546.

64536848201988 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 68 + 482 + 0 + 1 + 9 + 88 = 666.

64536848201988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64536848201989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7538056 + ... + 13634367.

Almost surely, 2^{64536848201988} is an apocalyptic number.

It is an amenable number.

64536848201988 is an abundant number, since it is smaller than the sum of its proper divisors (99755911276860).

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

64536848201988 is a wasteful number, since it uses less digits than its factorization.

64536848201988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21173033 (or 21173028 counting only the distinct ones).

The product of its (nonzero) digits is 637009920, while the sum is 72.

The spelling of 64536848201988 in words is "sixty-four trillion, five hundred thirty-six billion, eight hundred forty-eight million, two hundred one thousand, nine hundred eighty-eight".