631579648392 has 192 divisors, whose sum is σ = 2137932351360. Its totient is φ = 163636992000.

The previous prime is 631579648379. The next prime is 631579648417. The reversal of 631579648392 is 293846975136.

631579648392 is a `hidden beast` number, since 6 + 3 + 157 + 96 + 4 + 8 + 392 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2081098 + ... + 2365190.

It is an arithmetic number, because the mean of its divisors is an integer number (11135064330).

Almost surely, 2^631579648392 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 631579648392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068966175680).

631579648392 is an abundant number, since it is smaller than the sum of its proper divisors (1506352702968).

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

631579648392 is a wasteful number, since it uses less digits than its factorization.

631579648392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284524 (or 284517 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 631579648392 in words is "six hundred thirty-one billion, five hundred seventy-nine million, six hundred forty-eight thousand, three hundred ninety-two".