2861105021 has 8 divisors (see below), whose sum is σ = 2911968384. Its totient is φ = 2810369520.

The previous prime is 2861104907. The next prime is 2861105077. The reversal of 2861105021 is 1205011682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2861105021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861105521) 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, 13760 + ... + 76886.

It is an arithmetic number, because the mean of its divisors is an integer number (363996048).

Almost surely, 2^2861105021 is an apocalyptic number.

It is an amenable number.

2861105021 is a deficient number, since it is larger than the sum of its proper divisors (50863363).

2861105021 is an equidigital number, since it uses as much as digits as its factorization.

2861105021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63931.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 2861105021 is about 53489.2981913205. The cubic root of 2861105021 is about 1419.6390375579.

The spelling of 2861105021 in words is "two billion, eight hundred sixty-one million, one hundred five thousand, twenty-one".