4979478609 has 12 divisors (see below), whose sum is σ = 8220091776. Its totient is φ = 2845416312.

The previous prime is 4979478601. The next prime is 4979478671. The reversal of 4979478609 is 9068749794.

It is not a de Polignac number, because 4979478609 - 2³ = 4979478601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 79039343 = 4979478609 / (4 + 9 + 7 + 9 + 4 + 7 + 8 + 6 + 0 + 9).

It is not an unprimeable number, because it can be changed into a prime (4979478601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39519609 + ... + 39519734.

It is an arithmetic number, because the mean of its divisors is an integer number (685007648).

Almost surely, 2^4979478609 is an apocalyptic number.

It is an amenable number.

4979478609 is a deficient number, since it is larger than the sum of its proper divisors (3240613167).

4979478609 is a wasteful number, since it uses less digits than its factorization.

4979478609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79039356 (or 79039353 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The square root of 4979478609 is about 70565.4207739173. The cubic root of 4979478609 is about 1707.6333331683.

The spelling of 4979478609 in words is "four billion, nine hundred seventy-nine million, four hundred seventy-eight thousand, six hundred nine".