2125830618305 has 4 divisors (see below), whose sum is σ = 2550996741972. Its totient is φ = 1700664494640.

The previous prime is 2125830618271. The next prime is 2125830618319. The reversal of 2125830618305 is 5038160385212.

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 1473494943376 + 652335674929 = 1213876^2 + 807673^2 .

It is not a de Polignac number, because 2125830618305 - 2⁸ = 2125830618049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212583061826 + ... + 212583061835.

It is an arithmetic number, because the mean of its divisors is an integer number (637749185493).

Almost surely, 2^{2125830618305} is an apocalyptic number.

It is an amenable number.

2125830618305 is a deficient number, since it is larger than the sum of its proper divisors (425166123667).

2125830618305 is an equidigital number, since it uses as much as digits as its factorization.

2125830618305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425166123666.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 2125830618305 in words is "two trillion, one hundred twenty-five billion, eight hundred thirty million, six hundred eighteen thousand, three hundred five".