630656286909 has 12 divisors (see below), whose sum is σ = 924267616608. Its totient is φ = 382215931240.

The previous prime is 630656286839. The next prime is 630656286913. The reversal of 630656286909 is 909682656036.

It is not a de Polignac number, because 630656286909 - 2⁷ = 630656286781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630656286929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868672209 + ... + 868672934.

It is an arithmetic number, because the mean of its divisors is an integer number (77022301384).

Almost surely, 2^630656286909 is an apocalyptic number.

It is an amenable number.

630656286909 is a deficient number, since it is larger than the sum of its proper divisors (293611329699).

630656286909 is a wasteful number, since it uses less digits than its factorization.

630656286909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737345168 (or 1737345157 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 60.

The spelling of 630656286909 in words is "six hundred thirty billion, six hundred fifty-six million, two hundred eighty-six thousand, nine hundred nine".