494815856961 has 8 divisors (see below), whose sum is σ = 659956929760. Its totient is φ = 329776011072.

The previous prime is 494815856939. The next prime is 494815857007. The reversal of 494815856961 is 169658518494.

It is a happy number.

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

It is not a de Polignac number, because 494815856961 - 2⁵ = 494815856929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494815856892 and 494815856901.

It is not an unprimeable number, because it can be changed into a prime (494815856911) 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, 25295320 + ... + 25314873.

It is an arithmetic number, because the mean of its divisors is an integer number (82494616220).

Almost surely, 2^494815856961 is an apocalyptic number.

It is an amenable number.

494815856961 is a deficient number, since it is larger than the sum of its proper divisors (165141072799).

494815856961 is a wasteful number, since it uses less digits than its factorization.

494815856961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50613455.

The product of its digits is 74649600, while the sum is 66.

The spelling of 494815856961 in words is "four hundred ninety-four billion, eight hundred fifteen million, eight hundred fifty-six thousand, nine hundred sixty-one".