494551309768 has 16 divisors (see below), whose sum is σ = 927377133660. Its totient is φ = 247250740800.

The previous prime is 494551309717. The next prime is 494551309783. The reversal of 494551309768 is 867903155494.

It can be written as a sum of positive squares in 2 ways, for example, as 475247541924 + 19303767844 = 689382^2 + 138938^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3029763 + ... + 3188818.

Almost surely, 2^494551309768 is an apocalyptic number.

It is an amenable number.

494551309768 is a deficient number, since it is larger than the sum of its proper divisors (432825823892).

494551309768 is a wasteful number, since it uses less digits than its factorization.

494551309768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228528 (or 6228524 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 494551309768 in words is "four hundred ninety-four billion, five hundred fifty-one million, three hundred nine thousand, seven hundred sixty-eight".