4158578861 has 4 divisors (see below), whose sum is σ = 4197444192. Its totient is φ = 4119713532.

The previous prime is 4158578783. The next prime is 4158578899. The reversal of 4158578861 is 1688758514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4158578861 - 2³⁰ = 3084837037 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 (4158578161) 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, 19432505 + ... + 19432718.

It is an arithmetic number, because the mean of its divisors is an integer number (1049361048).

Almost surely, 2^4158578861 is an apocalyptic number.

It is an amenable number.

4158578861 is a deficient number, since it is larger than the sum of its proper divisors (38865331).

4158578861 is a wasteful number, since it uses less digits than its factorization.

4158578861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38865330.

The product of its digits is 2150400, while the sum is 53.

The square root of 4158578861 is about 64487.0441329109. The cubic root of 4158578861 is about 1608.1071412247.

The spelling of 4158578861 in words is "four billion, one hundred fifty-eight million, five hundred seventy-eight thousand, eight hundred sixty-one".