631057588384 has 48 divisors (see below), whose sum is σ = 1287181453320. Its totient is φ = 304187304960.

The previous prime is 631057588333. The next prime is 631057588391. The reversal of 631057588384 is 483885750136.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 529314451600 + 101743136784 = 727540^2 + 318972^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99022 + ... + 1127794.

Almost surely, 2^631057588384 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 631057588384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643590726660).

631057588384 is an abundant number, since it is smaller than the sum of its proper divisors (656123864936).

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

631057588384 is a wasteful number, since it uses less digits than its factorization.

631057588384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029473 (or 1029465 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 631057588384 in words is "six hundred thirty-one billion, fifty-seven million, five hundred eighty-eight thousand, three hundred eighty-four".