2621980105 has 16 divisors (see below), whose sum is σ = 3284847360. Its totient is φ = 2005363008.

The previous prime is 2621980037. The next prime is 2621980121. The reversal of 2621980105 is 5010891262.

It is not a de Polignac number, because 2621980105 - 2⁷ = 2621979977 is a prime.

It is a super-2 number, since 2×2621980105² = 13749559342031622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283291 + ... + 292399.

It is an arithmetic number, because the mean of its divisors is an integer number (205302960).

Almost surely, 2^2621980105 is an apocalyptic number.

It is an amenable number.

2621980105 is a deficient number, since it is larger than the sum of its proper divisors (662867255).

2621980105 is a wasteful number, since it uses less digits than its factorization.

2621980105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2621980105 is about 51205.2741912393. The cubic root of 2621980105 is about 1378.9328908328.

The spelling of 2621980105 in words is "two billion, six hundred twenty-one million, nine hundred eighty thousand, one hundred five".