64854243856132 has 6 divisors (see below), whose sum is σ = 113494926748238. Its totient is φ = 32427121928064.

The previous prime is 64854243856111. The next prime is 64854243856139. The reversal of 64854243856132 is 23165834245846.

64854243856132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 57714317836036 + 7139926020096 = 7596994^2 + 2672064^2 .

It is a super-2 number, since 2×64854243856132² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64854243856139) 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 as a sum of consecutive naturals, namely, 8106780482013 + ... + 8106780482020.

Almost surely, 2^{64854243856132} is an apocalyptic number.

It is an amenable number.

64854243856132 is a deficient number, since it is larger than the sum of its proper divisors (48640682892106).

64854243856132 is a wasteful number, since it uses less digits than its factorization.

64854243856132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16213560964037 (or 16213560964035 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 61.

The spelling of 64854243856132 in words is "sixty-four trillion, eight hundred fifty-four billion, two hundred forty-three million, eight hundred fifty-six thousand, one hundred thirty-two".