4005718461 has 8 divisors (see below), whose sum is σ = 5934397760. Its totient is φ = 2670478956.

The previous prime is 4005718439. The next prime is 4005718469. The reversal of 4005718461 is 1648175004.

It is a happy number.

4005718461 is a `hidden beast` number, since 4 + 0 + 0 + 571 + 84 + 6 + 1 = 666.

It is not a de Polignac number, because 4005718461 - 2⁹ = 4005717949 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 (4005718469) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74179945 + ... + 74179998.

It is an arithmetic number, because the mean of its divisors is an integer number (741799720).

Almost surely, 2^4005718461 is an apocalyptic number.

It is an amenable number.

4005718461 is a deficient number, since it is larger than the sum of its proper divisors (1928679299).

4005718461 is a wasteful number, since it uses less digits than its factorization.

4005718461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148359952 (or 148359946 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 4005718461 is about 63290.7454609282. The cubic root of 4005718461 is about 1588.1571493571.

The spelling of 4005718461 in words is "four billion, five million, seven hundred eighteen thousand, four hundred sixty-one".