494723641810 has 16 divisors (see below), whose sum is σ = 899682995736. Its totient is φ = 195849358848.

The previous prime is 494723641799. The next prime is 494723641817. The reversal of 494723641810 is 18146327494.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 336412760121 + 158310881689 = 580011^2 + 397883^2 .

It is a super-2 number, since 2×494723641810² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (494723641817) by changing a digit.

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, 255011217 + ... + 255013156.

Almost surely, 2^494723641810 is an apocalyptic number.

494723641810 is a deficient number, since it is larger than the sum of its proper divisors (404959353926).

494723641810 is a wasteful number, since it uses less digits than its factorization.

494723641810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510024477.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 494723641810 in words is "four hundred ninety-four billion, seven hundred twenty-three million, six hundred forty-one thousand, eight hundred ten".