4149507779 has 4 divisors (see below), whose sum is σ = 4150417776. Its totient is φ = 4148597784.

The previous prime is 4149507751. The next prime is 4149507797. The reversal of 4149507779 is 9777059414.

It is a happy number.

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 4149507779 - 2²⁸ = 3881072323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4149507779.

It is not an unprimeable number, because it can be changed into a prime (4149507799) 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 3 ways as a sum of consecutive naturals, for example, 448124 + ... + 457289.

It is an arithmetic number, because the mean of its divisors is an integer number (1037604444).

Almost surely, 2^4149507779 is an apocalyptic number.

4149507779 is a deficient number, since it is larger than the sum of its proper divisors (909997).

4149507779 is an equidigital number, since it uses as much as digits as its factorization.

4149507779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909996.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The square root of 4149507779 is about 64416.6731444585. The cubic root of 4149507779 is about 1606.9370386907.

The spelling of 4149507779 in words is "four billion, one hundred forty-nine million, five hundred seven thousand, seven hundred seventy-nine".