3959145863 has 4 divisors (see below), whose sum is σ = 3959607240. Its totient is φ = 3958684488.

The previous prime is 3959145833. The next prime is 3959145913. The reversal of 3959145863 is 3685419593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3959145863 - 2¹⁴ = 3959129479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3959145803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217568 + ... + 235061.

It is an arithmetic number, because the mean of its divisors is an integer number (989901810).

Almost surely, 2^3959145863 is an apocalyptic number.

3959145863 is a deficient number, since it is larger than the sum of its proper divisors (461377).

3959145863 is an equidigital number, since it uses as much as digits as its factorization.

3959145863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461376.

The product of its digits is 3499200, while the sum is 53.

The square root of 3959145863 is about 62921.7439602559. The cubic root of 3959145863 is about 1581.9782227617.

The spelling of 3959145863 in words is "three billion, nine hundred fifty-nine million, one hundred forty-five thousand, eight hundred sixty-three".