4978458919 has 16 divisors (see below), whose sum is σ = 5960882176. Its totient is φ = 4067949600.

The previous prime is 4978458917. The next prime is 4978458929. The reversal of 4978458919 is 9198548794.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4978458919 - 2¹ = 4978458917 is a prime.

It is a super-2 number, since 2×4978458919² = 49570106416341297122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978458917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156672 + ... + 185749.

It is an arithmetic number, because the mean of its divisors is an integer number (372555136).

Almost surely, 2^4978458919 is an apocalyptic number.

4978458919 is a deficient number, since it is larger than the sum of its proper divisors (982423257).

4978458919 is a wasteful number, since it uses less digits than its factorization.

4978458919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342526.

The product of its digits is 26127360, while the sum is 64.

The square root of 4978458919 is about 70558.1952646183. The cubic root of 4978458919 is about 1707.5167630317.

The spelling of 4978458919 in words is "four billion, nine hundred seventy-eight million, four hundred fifty-eight thousand, nine hundred nineteen".