64188257954228 has 24 divisors (see below), whose sum is σ = 118241999087520. Its totient is φ = 30404843108640.

The previous prime is 64188257954207. The next prime is 64188257954263. The reversal of 64188257954228 is 82245975288146.

64188257954228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64188257954228² (a number of 28 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 19204658 + ... + 22297878.

It is an arithmetic number, because the mean of its divisors is an integer number (4926749961980).

Almost surely, 2^{64188257954228} is an apocalyptic number.

It is an amenable number.

64188257954228 is a deficient number, since it is larger than the sum of its proper divisors (54053741133292).

64188257954228 is a wasteful number, since it uses less digits than its factorization.

64188257954228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366287 (or 3366285 counting only the distinct ones).

The product of its digits is 619315200, while the sum is 71.

The spelling of 64188257954228 in words is "sixty-four trillion, one hundred eighty-eight billion, two hundred fifty-seven million, nine hundred fifty-four thousand, two hundred twenty-eight".