2104720615 has 16 divisors (see below), whose sum is σ = 2675715552. Its totient is φ = 1583852544.

The previous prime is 2104720571. The next prime is 2104720621. The reversal of 2104720615 is 5160274012.

It is a cyclic number.

It is not a de Polignac number, because 2104720615 - 2⁷ = 2104720487 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 175852 + ... + 187438.

It is an arithmetic number, because the mean of its divisors is an integer number (167232222).

Almost surely, 2^2104720615 is an apocalyptic number.

2104720615 is a deficient number, since it is larger than the sum of its proper divisors (570994937).

2104720615 is a wasteful number, since it uses less digits than its factorization.

2104720615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2104720615 is about 45877.2341690299. The cubic root of 2104720615 is about 1281.5379899446.

Adding to 2104720615 its reverse (5160274012), we get a palindrome (7264994627).

The spelling of 2104720615 in words is "two billion, one hundred four million, seven hundred twenty thousand, six hundred fifteen".