1868385425 has 24 divisors (see below), whose sum is σ = 2582200800. Its totient is φ = 1332737280.

The previous prime is 1868385419. The next prime is 1868385437. The reversal of 1868385425 is 5245838681.

It is not a de Polignac number, because 1868385425 - 2³⁰ = 794643601 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 23 ways as a sum of consecutive naturals, for example, 107615 + ... + 123764.

It is an arithmetic number, because the mean of its divisors is an integer number (107591700).

Almost surely, 2^1868385425 is an apocalyptic number.

It is an amenable number.

1868385425 is a deficient number, since it is larger than the sum of its proper divisors (713815375).

1868385425 is a wasteful number, since it uses less digits than its factorization.

1868385425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231425 (or 231420 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The square root of 1868385425 is about 43224.8241754666. The cubic root of 1868385425 is about 1231.6542891469.

The spelling of 1868385425 in words is "one billion, eight hundred sixty-eight million, three hundred eighty-five thousand, four hundred twenty-five".