2108628358913 has 8 divisors (see below), whose sum is σ = 2234172886920. Its totient is φ = 1983251338240.

The previous prime is 2108628358901. The next prime is 2108628358927. The reversal of 2108628358913 is 3198538268012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 448594531984 + 1660033826929 = 669772^2 + 1288423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2108628358913 - 2⁴ = 2108628358897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108628358973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41850908 + ... + 41901261.

It is an arithmetic number, because the mean of its divisors is an integer number (279271610865).

Almost surely, 2^{2108628358913} is an apocalyptic number.

It is an amenable number.

2108628358913 is a deficient number, since it is larger than the sum of its proper divisors (125544528007).

2108628358913 is a wasteful number, since it uses less digits than its factorization.

2108628358913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83753667.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 2108628358913 in words is "two trillion, one hundred eight billion, six hundred twenty-eight million, three hundred fifty-eight thousand, nine hundred thirteen".