1865518052 has 12 divisors (see below), whose sum is σ = 3456695340. Its totient is φ = 877890816.

The previous prime is 1865518049. The next prime is 1865518073. The reversal of 1865518052 is 2508155681.

It can be written as a sum of positive squares in 2 ways, for example, as 1318706596 + 546811456 = 36314^2 + 23384^2 .

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, 13716977 + ... + 13717112.

It is an arithmetic number, because the mean of its divisors is an integer number (288057945).

Almost surely, 2^1865518052 is an apocalyptic number.

It is an amenable number.

1865518052 is a deficient number, since it is larger than the sum of its proper divisors (1591177288).

1865518052 is a wasteful number, since it uses less digits than its factorization.

1865518052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27434110 (or 27434108 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 41.

The square root of 1865518052 is about 43191.6433121038. The cubic root of 1865518052 is about 1231.0239016512.

The spelling of 1865518052 in words is "one billion, eight hundred sixty-five million, five hundred eighteen thousand, fifty-two".