3630979663973 has 4 divisors (see below), whose sum is σ = 3636902959308. Its totient is φ = 3625056368640.

The previous prime is 3630979663931. The next prime is 3630979664023. The reversal of 3630979663973 is 3793669790363.

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 657969189409 + 2973010474564 = 811153^2 + 1724242^2 .

It is a cyclic number.

It is not a de Polignac number, because 3630979663973 - 2¹⁶ = 3630979598437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3630979663897 and 3630979663906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3630979603973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961646748 + ... + 2961647973.

It is an arithmetic number, because the mean of its divisors is an integer number (909225739827).

Almost surely, 2^{3630979663973} is an apocalyptic number.

It is an amenable number.

3630979663973 is a deficient number, since it is larger than the sum of its proper divisors (5923295335).

3630979663973 is an equidigital number, since it uses as much as digits as its factorization.

3630979663973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923295334.

The product of its (nonzero) digits is 624974616, while the sum is 71.

The spelling of 3630979663973 in words is "three trillion, six hundred thirty billion, nine hundred seventy-nine million, six hundred sixty-three thousand, nine hundred seventy-three".