1863117044 has 12 divisors (see below), whose sum is σ = 3261691524. Its totient is φ = 931205184.

The previous prime is 1863117037. The next prime is 1863117049. The reversal of 1863117044 is 4407113681.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 495596644 + 1367520400 = 22262^2 + 36980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1863116995 and 1863117013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863117049) 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 3 ways as a sum of consecutive naturals, for example, 76289 + ... + 97704.

It is an arithmetic number, because the mean of its divisors is an integer number (271807627).

Almost surely, 2^1863117044 is an apocalyptic number.

It is an amenable number.

1863117044 is a deficient number, since it is larger than the sum of its proper divisors (1398574480).

1863117044 is a wasteful number, since it uses less digits than its factorization.

1863117044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176674 (or 176672 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1863117044 is about 43163.8395419129. The cubic root of 1863117044 is about 1230.4955466847.

The spelling of 1863117044 in words is "one billion, eight hundred sixty-three million, one hundred seventeen thousand, forty-four".