3816866025 has 54 divisors (see below), whose sum is σ = 7952606142. Its totient is φ = 1744848000.

The previous prime is 3816866003. The next prime is 3816866033. The reversal of 3816866025 is 5206686183.

3816866025 is a `hidden beast` number, since 38 + 1 + 6 + 8 + 6 + 602 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 796594176 + 3020271849 = 28224^2 + 54957^2 .

It is not a de Polignac number, because 3816866025 - 2¹⁰ = 3816865001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 162076 + ... + 184125.

Almost surely, 2^3816866025 is an apocalyptic number.

3816866025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3816866025 is an abundant number, since it is smaller than the sum of its proper divisors (4135740117).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3816866025 is a wasteful number, since it uses less digits than its factorization.

3816866025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346231 (or 346216 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 3816866025 is about 61780.7900969225. The cubic root of 3816866025 is about 1562.7960518492.

The spelling of 3816866025 in words is "three billion, eight hundred sixteen million, eight hundred sixty-six thousand, twenty-five".