494721082879 has 8 divisors (see below), whose sum is σ = 515364967040. Its totient is φ = 474370020000.

The previous prime is 494721082847. The next prime is 494721082897. The reversal of 494721082879 is 978280127494.

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 494721082879 - 2⁵ = 494721082847 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 (494721082829) 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, 73201872 + ... + 73208629.

It is an arithmetic number, because the mean of its divisors is an integer number (64420620880).

Almost surely, 2^494721082879 is an apocalyptic number.

494721082879 is a deficient number, since it is larger than the sum of its proper divisors (20643884161).

494721082879 is a wasteful number, since it uses less digits than its factorization.

494721082879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146410641.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 494721082879 in words is "four hundred ninety-four billion, seven hundred twenty-one million, eighty-two thousand, eight hundred seventy-nine".