2605214541620 has 24 divisors (see below), whose sum is σ = 5470984735944. Its totient is φ = 1042079302656.

The previous prime is 2605214541607. The next prime is 2605214541623. The reversal of 2605214541620 is 261454125062.

2605214541620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 57526103716 + 2547688437904 = 239846^2 + 1596148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605214541623) 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, 4076984 + ... + 4672496.

It is an arithmetic number, because the mean of its divisors is an integer number (227957697331).

Almost surely, 2^{2605214541620} is an apocalyptic number.

2605214541620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605214541620 is an abundant number, since it is smaller than the sum of its proper divisors (2865770194324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2605214541620 is a wasteful number, since it uses less digits than its factorization.

2605214541620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814259 (or 814257 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 2605214541620 its reverse (261454125062), we get a palindrome (2866668666682).

The spelling of 2605214541620 in words is "two trillion, six hundred five billion, two hundred fourteen million, five hundred forty-one thousand, six hundred twenty".