64400402206422 has 12 divisors (see below), whose sum is σ = 139534204780620. Its totient is φ = 21466800735468.

The previous prime is 64400402206417. The next prime is 64400402206489. The reversal of 64400402206422 is 22460220400446.

64400402206422 is a `hidden beast` number, since 6 + 4 + 4 + 0 + 0 + 4 + 0 + 2 + 2 + 0 + 642 + 2 = 666.

64400402206422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 5 ways as a sum of consecutive naturals, for example, 1788900061272 + ... + 1788900061307.

It is an arithmetic number, because the mean of its divisors is an integer number (11627850398385).

Almost surely, 2^{64400402206422} is an apocalyptic number.

64400402206422 is an abundant number, since it is smaller than the sum of its proper divisors (75133802574198).

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

64400402206422 is a wasteful number, since it uses less digits than its factorization.

64400402206422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577800122587 (or 3577800122584 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 64400402206422 its reverse (22460220400446), we get a palindrome (86860622606868).

The spelling of 64400402206422 in words is "sixty-four trillion, four hundred billion, four hundred two million, two hundred six thousand, four hundred twenty-two".