64186352881142 has 4 divisors (see below), whose sum is σ = 96279529321716. Its totient is φ = 32093176440570.

The previous prime is 64186352881121. The next prime is 64186352881193. The reversal of 64186352881142 is 24118825368146.

64186352881142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 16046588220284 + ... + 16046588220287.

It is an arithmetic number, because the mean of its divisors is an integer number (24069882330429).

Almost surely, 2^{64186352881142} is an apocalyptic number.

64186352881142 is a deficient number, since it is larger than the sum of its proper divisors (32093176440574).

64186352881142 is a wasteful number, since it uses less digits than its factorization.

64186352881142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32093176440573.

The product of its digits is 17694720, while the sum is 59.

The spelling of 64186352881142 in words is "sixty-four trillion, one hundred eighty-six billion, three hundred fifty-two million, eight hundred eighty-one thousand, one hundred forty-two".