821419049317 has 8 divisors (see below), whose sum is σ = 865630868960. Its totient is φ = 777305153520.

The previous prime is 821419049299. The next prime is 821419049323. The reversal of 821419049317 is 713940914128.

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 821419049317 - 2³⁵ = 787059310949 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 (821419029317) 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, 24463734 + ... + 24497287.

It is an arithmetic number, because the mean of its divisors is an integer number (108203858620).

Almost surely, 2^821419049317 is an apocalyptic number.

It is an amenable number.

821419049317 is a deficient number, since it is larger than the sum of its proper divisors (44211819643).

821419049317 is a wasteful number, since it uses less digits than its factorization.

821419049317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48961923.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 821419049317 in words is "eight hundred twenty-one billion, four hundred nineteen million, forty-nine thousand, three hundred seventeen".