64212543632 has 40 divisors (see below), whose sum is σ = 127504755840. Its totient is φ = 31317886080.

The previous prime is 64212543607. The next prime is 64212543673. The reversal of 64212543632 is 23634521246.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201119 + ... + 410942.

It is an arithmetic number, because the mean of its divisors is an integer number (3187618896).

Almost surely, 2^64212543632 is an apocalyptic number.

It is an amenable number.

64212543632 is a deficient number, since it is larger than the sum of its proper divisors (63292212208).

64212543632 is a wasteful number, since it uses less digits than its factorization.

64212543632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612231 (or 612225 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The spelling of 64212543632 in words is "sixty-four billion, two hundred twelve million, five hundred forty-three thousand, six hundred thirty-two".