4066778513 has 4 divisors (see below), whose sum is σ = 4647746880. Its totient is φ = 3485810148.

The previous prime is 4066778501. The next prime is 4066778531. The reversal of 4066778513 is 3158776604.

4066778513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4066778513 - 2²² = 4062584209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4066778533) 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, 290484173 + ... + 290484186.

It is an arithmetic number, because the mean of its divisors is an integer number (1161936720).

Almost surely, 2^4066778513 is an apocalyptic number.

It is an amenable number.

4066778513 is a deficient number, since it is larger than the sum of its proper divisors (580968367).

4066778513 is an equidigital number, since it uses as much as digits as its factorization.

4066778513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580968366.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 4066778513 is about 63771.2985048917. The cubic root of 4066778513 is about 1596.1860346467.

The spelling of 4066778513 in words is "four billion, sixty-six million, seven hundred seventy-eight thousand, five hundred thirteen".