1863738825 has 48 divisors (see below), whose sum is σ = 3323912256. Its totient is φ = 916012800.

The previous prime is 1863738797. The next prime is 1863738839. The reversal of 1863738825 is 5288373681.

It is not a de Polignac number, because 1863738825 - 2¹⁰ = 1863737801 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 789547 + ... + 791903.

It is an arithmetic number, because the mean of its divisors is an integer number (69248172).

Almost surely, 2^1863738825 is an apocalyptic number.

1863738825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1863738825 is a deficient number, since it is larger than the sum of its proper divisors (1460173431).

1863738825 is a wasteful number, since it uses less digits than its factorization.

1863738825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194 (or 3189 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 1863738825 is about 43171.0415093266. The cubic root of 1863738825 is about 1230.6324165354.

The spelling of 1863738825 in words is "one billion, eight hundred sixty-three million, seven hundred thirty-eight thousand, eight hundred twenty-five".