630636670337 has 4 divisors (see below), whose sum is σ = 630644760900. Its totient is φ = 630628579776.

The previous prime is 630636670309. The next prime is 630636670373. The reversal of 630636670337 is 733076636036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 232474408336 + 398162262001 = 482156^2 + 631001^2 .

It is a cyclic number.

It is not a de Polignac number, because 630636670337 - 2¹⁴ = 630636653953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630636660337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3927212 + ... + 4084637.

It is an arithmetic number, because the mean of its divisors is an integer number (157661190225).

Almost surely, 2^630636670337 is an apocalyptic number.

It is an amenable number.

630636670337 is a deficient number, since it is larger than the sum of its proper divisors (8090563).

630636670337 is an equidigital number, since it uses as much as digits as its factorization.

630636670337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090562.

The product of its (nonzero) digits is 5143824, while the sum is 50.

The spelling of 630636670337 in words is "six hundred thirty billion, six hundred thirty-six million, six hundred seventy thousand, three hundred thirty-seven".