631794860984 has 24 divisors (see below), whose sum is σ = 1353858876840. Its totient is φ = 270766676928.

The previous prime is 631794860959. The next prime is 631794860987. The reversal of 631794860984 is 489068497136.

It is a self number, because there is not a number n which added to its sum of digits gives 631794860984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631794860987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5895044 + ... + 6001260.

It is an arithmetic number, because the mean of its divisors is an integer number (56410786535).

Almost surely, 2^631794860984 is an apocalyptic number.

It is an amenable number.

631794860984 is an abundant number, since it is smaller than the sum of its proper divisors (722064015856).

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

631794860984 is an frugal number, since it uses more digits than its factorization.

631794860984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212447 (or 106226 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 631794860984 in words is "six hundred thirty-one billion, seven hundred ninety-four million, eight hundred sixty thousand, nine hundred eighty-four".