631097798496 has 192 divisors, whose sum is σ = 1843287860736. Its totient is φ = 187434291200.

The previous prime is 631097798483. The next prime is 631097798503. The reversal of 631097798496 is 694897790136.

It is a self number, because there is not a number n which added to its sum of digits gives 631097798496.

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, 57697540 + ... + 57708476.

It is an arithmetic number, because the mean of its divisors is an integer number (9600457608).

Almost surely, 2^631097798496 is an apocalyptic number.

631097798496 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631097798496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921643930368).

631097798496 is an abundant number, since it is smaller than the sum of its proper divisors (1212190062240).

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

631097798496 is a wasteful number, since it uses less digits than its factorization.

631097798496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12045 (or 12037 counting only the distinct ones).

The product of its (nonzero) digits is 123451776, while the sum is 69.

The spelling of 631097798496 in words is "six hundred thirty-one billion, ninety-seven million, seven hundred ninety-eight thousand, four hundred ninety-six".