317823743420 has 96 divisors (see below), whose sum is σ = 706232894976. Its totient is φ = 119948083200.

The previous prime is 317823743401. The next prime is 317823743449. The reversal of 317823743420 is 24347328713.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50150492 + ... + 50156828.

It is an arithmetic number, because the mean of its divisors is an integer number (7356592656).

Almost surely, 2^317823743420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317823743420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353116447488).

317823743420 is an abundant number, since it is smaller than the sum of its proper divisors (388409151556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317823743420 is a wasteful number, since it uses less digits than its factorization.

317823743420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391 (or 8389 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 317823743420 in words is "three hundred seventeen billion, eight hundred twenty-three million, seven hundred forty-three thousand, four hundred twenty".