631246522368 has 576 divisors, whose sum is σ = 2136781745280. Its totient is φ = 162201600000.

The previous prime is 631246522367. The next prime is 631246522397. The reversal of 631246522368 is 863225642136.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (631246522367) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525600168 + ... + 525601368.

It is an arithmetic number, because the mean of its divisors is an integer number (3709690530).

Almost surely, 2^631246522368 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 631246522368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068390872640).

631246522368 is an abundant number, since it is smaller than the sum of its proper divisors (1505535222912).

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

631246522368 is a wasteful number, since it uses less digits than its factorization.

631246522368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1325 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The spelling of 631246522368 in words is "six hundred thirty-one billion, two hundred forty-six million, five hundred twenty-two thousand, three hundred sixty-eight".