494968984517 has 4 divisors (see below), whose sum is σ = 565678839456. Its totient is φ = 424259129580.

The previous prime is 494968984507. The next prime is 494968984567. The reversal of 494968984517 is 715489869494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494968984517 - 2¹⁸ = 494968722373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494968984507) 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 3 ways as a sum of consecutive naturals, for example, 35354927459 + ... + 35354927472.

It is an arithmetic number, because the mean of its divisors is an integer number (141419709864).

Almost surely, 2^494968984517 is an apocalyptic number.

It is an amenable number.

494968984517 is a deficient number, since it is larger than the sum of its proper divisors (70709854939).

494968984517 is an equidigital number, since it uses as much as digits as its factorization.

494968984517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70709854938.

The product of its digits is 627056640, while the sum is 74.

The spelling of 494968984517 in words is "four hundred ninety-four billion, nine hundred sixty-eight million, nine hundred eighty-four thousand, five hundred seventeen".