1863418025 has 96 divisors (see below), whose sum is σ = 2955667968. Its totient is φ = 1135411200.

The previous prime is 1863418021. The next prime is 1863418031. The reversal of 1863418025 is 5208143681.

It is not a de Polignac number, because 1863418025 - 2² = 1863418021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1863418025.

It is not an unprimeable number, because it can be changed into a prime (1863418021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7731905 + ... + 7732145.

It is an arithmetic number, because the mean of its divisors is an integer number (30788208).

Almost surely, 2^1863418025 is an apocalyptic number.

It is an amenable number.

1863418025 is a deficient number, since it is larger than the sum of its proper divisors (1092249943).

1863418025 is a wasteful number, since it uses less digits than its factorization.

1863418025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1863418025 is about 43167.3258958671. The cubic root of 1863418025 is about 1230.5618040784.

The spelling of 1863418025 in words is "one billion, eight hundred sixty-three million, four hundred eighteen thousand, twenty-five".