64550041534394 has 24 divisors (see below), whose sum is σ = 107992756801020. Its totient is φ = 28765005236352.

The previous prime is 64550041534367. The next prime is 64550041534409. The reversal of 64550041534394 is 49343514005546.

It can be written as a sum of positive squares in 6 ways, for example, as 31587940699225 + 32962100835169 = 5620315^2 + 5741263^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1476014939 + ... + 1476058670.

Almost surely, 2^{64550041534394} is an apocalyptic number.

64550041534394 is a deficient number, since it is larger than the sum of its proper divisors (43442715266626).

64550041534394 is a wasteful number, since it uses less digits than its factorization.

64550041534394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952073682 (or 2952073653 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 64550041534394 in words is "sixty-four trillion, five hundred fifty billion, forty-one million, five hundred thirty-four thousand, three hundred ninety-four".