2015873646 has 16 divisors (see below), whose sum is σ = 4032360144. Its totient is φ = 671855744.

The previous prime is 2015873641. The next prime is 2015873693. The reversal of 2015873646 is 6463785102.

It is a junction number, because it is equal to n+sod(n) for n = 2015873598 and 2015873607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015873641) 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 7 ways as a sum of consecutive naturals, for example, 24886 + ... + 68198.

It is an arithmetic number, because the mean of its divisors is an integer number (252022509).

Almost surely, 2^2015873646 is an apocalyptic number.

2015873646 is an abundant number, since it is smaller than the sum of its proper divisors (2016486498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015873646 is a wasteful number, since it uses less digits than its factorization.

2015873646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51075.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2015873646 is about 44898.4815556161. The cubic root of 2015873646 is about 1263.2455268734.

The spelling of 2015873646 in words is "two billion, fifteen million, eight hundred seventy-three thousand, six hundred forty-six".