630206848821 has 32 divisors (see below), whose sum is σ = 950662800000. Its totient is φ = 367843956480.

The previous prime is 630206848787. The next prime is 630206848867. The reversal of 630206848821 is 128848602036.

It is not a de Polignac number, because 630206848821 - 2²¹ = 630204751669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630206848891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449446 + ... + 1209303.

It is an arithmetic number, because the mean of its divisors is an integer number (29708212500).

Almost surely, 2^630206848821 is an apocalyptic number.

It is an amenable number.

630206848821 is a deficient number, since it is larger than the sum of its proper divisors (320455951179).

630206848821 is a wasteful number, since it uses less digits than its factorization.

630206848821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659189.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 630206848821 in words is "six hundred thirty billion, two hundred six million, eight hundred forty-eight thousand, eight hundred twenty-one".