2643245105 has 8 divisors (see below), whose sum is σ = 3190888512. Its totient is φ = 2101933168.

The previous prime is 2643245093. The next prime is 2643245147. The reversal of 2643245105 is 5015423462.

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 2643245105 - 2⁴ = 2643245089 is a prime.

It is a super-2 number, since 2×2643245105² = 13973489370212922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581947 + ... + 1583616.

It is an arithmetic number, because the mean of its divisors is an integer number (398861064).

Almost surely, 2^2643245105 is an apocalyptic number.

It is an amenable number.

2643245105 is a deficient number, since it is larger than the sum of its proper divisors (547643407).

2643245105 is a wasteful number, since it uses less digits than its factorization.

2643245105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165735.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2643245105 is about 51412.4995015804. The cubic root of 2643245105 is about 1382.6507032474.

Adding to 2643245105 its reverse (5015423462), we get a palindrome (7658668567).

The spelling of 2643245105 in words is "two billion, six hundred forty-three million, two hundred forty-five thousand, one hundred five".