2015844819 has 12 divisors (see below), whose sum is σ = 2846351304. Its totient is φ = 1264642624.

The previous prime is 2015844791. The next prime is 2015844829. The reversal of 2015844819 is 9184485102.

It is not a de Polignac number, because 2015844819 - 2⁹ = 2015844307 is a prime.

It is a super-2 number, since 2×2015844819² = 8127260668578285522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2015844829) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 317494 + ... + 323780.

It is an arithmetic number, because the mean of its divisors is an integer number (237195942).

Almost surely, 2^2015844819 is an apocalyptic number.

2015844819 is a deficient number, since it is larger than the sum of its proper divisors (830506485).

2015844819 is an frugal number, since it uses more digits than its factorization.

2015844819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 2015844819 is about 44898.1605302489. The cubic root of 2015844819 is about 1263.2395053729.

It can be divided in two parts, 201584 and 4819, that added together give a triangular number (206403 = T₆₄₂).

The spelling of 2015844819 in words is "two billion, fifteen million, eight hundred forty-four thousand, eight hundred nineteen".