2041612644521 has 4 divisors (see below), whose sum is σ = 2042101423572. Its totient is φ = 2041123865472.

The previous prime is 2041612644419. The next prime is 2041612644523. The reversal of 2041612644521 is 1254462161402.

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 1468168422400 + 573444222121 = 1211680^2 + 757261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2041612644521 is a prime.

It is a super-2 number, since 2×2041612644521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2041612644523) 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, 244383260 + ... + 244391613.

It is an arithmetic number, because the mean of its divisors is an integer number (510525355893).

Almost surely, 2^{2041612644521} is an apocalyptic number.

It is an amenable number.

2041612644521 is a deficient number, since it is larger than the sum of its proper divisors (488779051).

2041612644521 is an equidigital number, since it uses as much as digits as its factorization.

2041612644521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488779050.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 2041612644521 in words is "two trillion, forty-one billion, six hundred twelve million, six hundred forty-four thousand, five hundred twenty-one".