631259588960 has 288 divisors, whose sum is σ = 2013381764352. Its totient is φ = 181620541440.

The previous prime is 631259588923. The next prime is 631259588963. The reversal of 631259588960 is 69885952136.

It is a junction number, because it is equal to n+sod(n) for n = 631259588893 and 631259588902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631259588963) 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, 1930487 + ... + 2233673.

It is an arithmetic number, because the mean of its divisors is an integer number (6990908904).

Almost surely, 2^631259588960 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 631259588960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006690882176).

631259588960 is an abundant number, since it is smaller than the sum of its proper divisors (1382122175392).

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

631259588960 is a wasteful number, since it uses less digits than its factorization.

631259588960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303246 (or 303225 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 631259588960 in words is "six hundred thirty-one billion, two hundred fifty-nine million, five hundred eighty-eight thousand, nine hundred sixty".