4978389519 has 20 divisors (see below), whose sum is σ = 7828269240. Its totient is φ = 3144245040.

The previous prime is 4978389509. The next prime is 4978389539. The reversal of 4978389519 is 9159838794.

4978389519 is a `hidden beast` number, since 49 + 78 + 3 + 8 + 9 + 519 = 666.

It is not a de Polignac number, because 4978389519 - 2⁴ = 4978389503 is a prime.

It is a super-2 number, since 2×4978389519² = 49568724405778102722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978389509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1615872 + ... + 1618949.

It is an arithmetic number, because the mean of its divisors is an integer number (391413462).

Almost surely, 2^4978389519 is an apocalyptic number.

4978389519 is a deficient number, since it is larger than the sum of its proper divisors (2849879721).

4978389519 is a wasteful number, since it uses less digits than its factorization.

4978389519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234852 (or 3234843 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 4978389519 is about 70557.7034702803. The cubic root of 4978389519 is about 1707.5088287013.

The spelling of 4978389519 in words is "four billion, nine hundred seventy-eight million, three hundred eighty-nine thousand, five hundred nineteen".