2620324645 has 8 divisors (see below), whose sum is σ = 3229373304. Its totient is φ = 2039603904.

The previous prime is 2620324643. The next prime is 2620324649. The reversal of 2620324645 is 5464230262.

It can be written as a sum of positive squares in 4 ways, for example, as 737285409 + 1883039236 = 27153^2 + 43394^2 .

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 2620324645 - 2¹ = 2620324643 is a prime.

It is a super-2 number, since 2×2620324645² = 13732202490388752050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620324645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620324643) 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, 7081774 + ... + 7082143.

It is an arithmetic number, because the mean of its divisors is an integer number (403671663).

Almost surely, 2^2620324645 is an apocalyptic number.

It is an amenable number.

2620324645 is a deficient number, since it is larger than the sum of its proper divisors (609048659).

2620324645 is a wasteful number, since it uses less digits than its factorization.

2620324645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14163959.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 2620324645 is about 51189.1067025007. The cubic root of 2620324645 is about 1378.6426205345.

The spelling of 2620324645 in words is "two billion, six hundred twenty million, three hundred twenty-four thousand, six hundred forty-five".