494131322498 has 54 divisors (see below), whose sum is σ = 827353928457. Its totient is φ = 221170482720.

The previous prime is 494131322497. The next prime is 494131322507. The reversal of 494131322498 is 894223131494.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 491859560929 + 2271761569 = 701327^2 + 47663^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=497057.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494131322497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 798273233 + ... + 798273851.

Almost surely, 2^494131322498 is an apocalyptic number.

494131322498 is a deficient number, since it is larger than the sum of its proper divisors (333222605959).

494131322498 is an frugal number, since it uses more digits than its factorization.

494131322498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 705 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

Multiplying 494131322498 by its sum of digits (50), we get a square (24706566124900 = 4970570²).

The spelling of 494131322498 in words is "four hundred ninety-four billion, one hundred thirty-one million, three hundred twenty-two thousand, four hundred ninety-eight".