64826826914644 has 24 divisors (see below), whose sum is σ = 113710307070528. Its totient is φ = 32338245370560.

The previous prime is 64826826914609. The next prime is 64826826914677. The reversal of 64826826914644 is 44641962862846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6360289 + ... + 13042504.

It is an arithmetic number, because the mean of its divisors is an integer number (4737929461272).

Almost surely, 2^{64826826914644} is an apocalyptic number.

It is an amenable number.

64826826914644 is a deficient number, since it is larger than the sum of its proper divisors (48883480155884).

64826826914644 is a wasteful number, since it uses less digits than its factorization.

64826826914644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404735 (or 19404733 counting only the distinct ones).

The product of its digits is 764411904, while the sum is 70.

The spelling of 64826826914644 in words is "sixty-four trillion, eight hundred twenty-six billion, eight hundred twenty-six million, nine hundred fourteen thousand, six hundred forty-four".