494863395409 has 8 divisors (see below), whose sum is σ = 502309575360. Its totient is φ = 487418984976.

The previous prime is 494863395373. The next prime is 494863395539. The reversal of 494863395409 is 904593368494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494863395409 - 2⁷ = 494863395281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494863695409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126612 + ... + 1002874.

It is an arithmetic number, because the mean of its divisors is an integer number (62788696920).

Almost surely, 2^494863395409 is an apocalyptic number.

It is an amenable number.

494863395409 is a deficient number, since it is larger than the sum of its proper divisors (7446179951).

494863395409 is an equidigital number, since it uses as much as digits as its factorization.

494863395409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884759.

The product of its (nonzero) digits is 100776960, while the sum is 64.

The spelling of 494863395409 in words is "four hundred ninety-four billion, eight hundred sixty-three million, three hundred ninety-five thousand, four hundred nine".