313561556424 has 96 divisors (see below), whose sum is σ = 868945779000. Its totient is φ = 102116874240.

The previous prime is 313561556353. The next prime is 313561556431. The reversal of 313561556424 is 424655165313.

It is a happy number.

313561556424 is a `hidden beast` number, since 3 + 1 + 3 + 5 + 61 + 5 + 564 + 24 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 229393102500 + 84168453924 = 478950^2 + 290118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313561556424.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414832 + ... + 893984.

Almost surely, 2^313561556424 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 313561556424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434472889500).

313561556424 is an abundant number, since it is smaller than the sum of its proper divisors (555384222576).

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

313561556424 is a wasteful number, since it uses less digits than its factorization.

313561556424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479375 (or 479368 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 313561556424 in words is "three hundred thirteen billion, five hundred sixty-one million, five hundred fifty-six thousand, four hundred twenty-four".