631944674044 has 12 divisors (see below), whose sum is σ = 1106161056000. Its totient is φ = 315898658048.

The previous prime is 631944674029. The next prime is 631944674047. The reversal of 631944674044 is 440476449136.

It is a junction number, because it is equal to n+sod(n) for n = 631944673982 and 631944674000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631944674047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18400444 + ... + 18434755.

It is an arithmetic number, because the mean of its divisors is an integer number (92180088000).

Almost surely, 2^631944674044 is an apocalyptic number.

It is an amenable number.

631944674044 is a deficient number, since it is larger than the sum of its proper divisors (474216381956).

631944674044 is a wasteful number, since it uses less digits than its factorization.

631944674044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36839492 (or 36839490 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 631944674044 in words is "six hundred thirty-one billion, nine hundred forty-four million, six hundred seventy-four thousand, forty-four".