2104640930615 has 4 divisors (see below), whose sum is σ = 2525569116744. Its totient is φ = 1683712744488.

The previous prime is 2104640930593. The next prime is 2104640930621. The reversal of 2104640930615 is 5160390464012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2104640930615 - 2⁴⁰ = 1005129302839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210464093057 + ... + 210464093066.

It is an arithmetic number, because the mean of its divisors is an integer number (631392279186).

Almost surely, 2^{2104640930615} is an apocalyptic number.

2104640930615 is a deficient number, since it is larger than the sum of its proper divisors (420928186129).

2104640930615 is an equidigital number, since it uses as much as digits as its factorization.

2104640930615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420928186128.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 2104640930615 in words is "two trillion, one hundred four billion, six hundred forty million, nine hundred thirty thousand, six hundred fifteen".