3865790425 has 24 divisors (see below), whose sum is σ = 5489480000. Its totient is φ = 2645455680.

The previous prime is 3865790399. The next prime is 3865790431. The reversal of 3865790425 is 5240975683.

It is not a de Polignac number, because 3865790425 - 2¹⁹ = 3865266137 is a prime.

It is a super-2 number, since 2×3865790425² = 29888671220043361250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65191 + ... + 109459.

Almost surely, 2^3865790425 is an apocalyptic number.

3865790425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3865790425 is a deficient number, since it is larger than the sum of its proper divisors (1623689575).

3865790425 is a wasteful number, since it uses less digits than its factorization.

3865790425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44785 (or 44780 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The square root of 3865790425 is about 62175.4808988238. The cubic root of 3865790425 is about 1569.4450044487.

The spelling of 3865790425 in words is "three billion, eight hundred sixty-five million, seven hundred ninety thousand, four hundred twenty-five".