4978450117 has 4 divisors (see below), whose sum is σ = 4978930860. Its totient is φ = 4977969376.

The previous prime is 4978450111. The next prime is 4978450123. The reversal of 4978450117 is 7110548794.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (4978450111) and next prime (4978450123).

It can be written as a sum of positive squares in 2 ways, for example, as 1108490436 + 3869959681 = 33294^2 + 62209^2 .

It is a cyclic number.

It is not a de Polignac number, because 4978450117 - 2⁷ = 4978449989 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 (4978450111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224488 + ... + 245665.

It is an arithmetic number, because the mean of its divisors is an integer number (1244732715).

Almost surely, 2^4978450117 is an apocalyptic number.

It is an amenable number.

4978450117 is a deficient number, since it is larger than the sum of its proper divisors (480743).

4978450117 is a wasteful number, since it uses less digits than its factorization.

4978450117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480742.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 4978450117 is about 70558.1328905464. The cubic root of 4978450117 is about 1707.5157567249.

The spelling of 4978450117 in words is "four billion, nine hundred seventy-eight million, four hundred fifty thousand, one hundred seventeen".