631207669564 has 24 divisors (see below), whose sum is σ = 1107717030000. Its totient is φ = 314717587200.

The previous prime is 631207669553. The next prime is 631207669591. The reversal of 631207669564 is 465966702136.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5167062 + ... + 5287810.

It is an arithmetic number, because the mean of its divisors is an integer number (46154876250).

Almost surely, 2^631207669564 is an apocalyptic number.

It is an amenable number.

631207669564 is a deficient number, since it is larger than the sum of its proper divisors (476509360436).

631207669564 is a wasteful number, since it uses less digits than its factorization.

631207669564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124413 (or 124411 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 631207669564 in words is "six hundred thirty-one billion, two hundred seven million, six hundred sixty-nine thousand, five hundred sixty-four".