631745190976 has 63 divisors (see below), whose sum is σ = 1271962054623. Its totient is φ = 311316664320.

The previous prime is 631745190959. The next prime is 631745191009. The reversal of 631745190976 is 679091547136.

The square root of 631745190976 is 794824.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 52587662400 + 579157528576 = 229320^2 + 761024^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 631745190976.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 464176536 + ... + 464177896.

Almost surely, 2^631745190976 is an apocalyptic number.

631745190976 is the 794824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631745190976

631745190976 is an abundant number, since it is smaller than the sum of its proper divisors (640216863647).

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

631745190976 is an frugal number, since it uses more digits than its factorization.

631745190976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 631745190976 in words is "six hundred thirty-one billion, seven hundred forty-five million, one hundred ninety thousand, nine hundred seventy-six".