631152803772 has 144 divisors (see below), whose sum is σ = 1706835049920. Its totient is φ = 195951550464.

The previous prime is 631152803741. The next prime is 631152803779. The reversal of 631152803772 is 277308251136.

631152803772 is a `hidden beast` number, since 631 + 1 + 5 + 2 + 8 + 0 + 3 + 7 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631152803779) 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, 131679808 + ... + 131684600.

It is an arithmetic number, because the mean of its divisors is an integer number (11853021180).

Almost surely, 2^631152803772 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 631152803772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853417524960).

631152803772 is an abundant number, since it is smaller than the sum of its proper divisors (1075682246148).

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

631152803772 is a wasteful number, since it uses less digits than its factorization.

631152803772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012 (or 7007 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 631152803772 in words is "six hundred thirty-one billion, one hundred fifty-two million, eight hundred three thousand, seven hundred seventy-two".