493994946644 has 6 divisors (see below), whose sum is σ = 864491156634. Its totient is φ = 246997473320.

The previous prime is 493994946623. The next prime is 493994946649. The reversal of 493994946644 is 446649499394.

It can be written as a sum of positive squares in only one way, i.e., 329662002244 + 164332944400 = 574162^2 + 405380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493994946649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61749368327 + ... + 61749368334.

It is an arithmetic number, because the mean of its divisors is an integer number (144081859439).

Almost surely, 2^493994946644 is an apocalyptic number.

It is an amenable number.

493994946644 is a deficient number, since it is larger than the sum of its proper divisors (370496209990).

493994946644 is a wasteful number, since it uses less digits than its factorization.

493994946644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123498736665 (or 123498736663 counting only the distinct ones).

The product of its digits is 725594112, while the sum is 71.

The spelling of 493994946644 in words is "four hundred ninety-three billion, nine hundred ninety-four million, nine hundred forty-six thousand, six hundred forty-four".