632770839988 has 18 divisors (see below), whose sum is σ = 1288140638946. Its totient is φ = 271187502768.

The previous prime is 632770839931. The next prime is 632770839997. The reversal of 632770839988 is 889938077236.

It can be written as a sum of positive squares in only one way, i.e., 586299552804 + 46471287184 = 765702^2 + 215572^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1614211131 + ... + 1614211522.

Almost surely, 2^632770839988 is an apocalyptic number.

It is an amenable number.

632770839988 is an abundant number, since it is smaller than the sum of its proper divisors (655369798958).

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

632770839988 is a wasteful number, since it uses less digits than its factorization.

632770839988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228422671 (or 3228422662 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 632770839988 in words is "six hundred thirty-two billion, seven hundred seventy million, eight hundred thirty-nine thousand, nine hundred eighty-eight".