630567810889 has 9 divisors (see below), whose sum is σ = 631996417287. Its totient is φ = 629142431904.

The previous prime is 630567810797. The next prime is 630567810911. The reversal of 630567810889 is 988018765036.

The square root of 630567810889 is 794083.

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

It can be written as a sum of positive squares in only one way, i.e., 193541044489 + 437026766400 = 439933^2 + 661080^2 .

It is not a de Polignac number, because 630567810889 - 2¹¹ = 630567808841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630567820889) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 624942817 + ... + 624943825.

It is an arithmetic number, because the mean of its divisors is an integer number (70221824143).

Almost surely, 2^630567810889 is an apocalyptic number.

630567810889 is the 794083-rd square number.

630567810889 is the 397042-nd centered octagonal number.

It is an amenable number.

630567810889 is a deficient number, since it is larger than the sum of its proper divisors (1428606398).

630567810889 is an frugal number, since it uses more digits than its factorization.

630567810889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 630567810889 in words is "six hundred thirty billion, five hundred sixty-seven million, eight hundred ten thousand, eight hundred eighty-nine".