4787478919 has 24 divisors (see below), whose sum is σ = 5193334800. Its totient is φ = 4411413504.

The previous prime is 4787478901. The next prime is 4787478929. The reversal of 4787478919 is 9198747874.

It is not a de Polignac number, because 4787478919 - 2²⁷ = 4653261191 is a prime.

It is a super-2 number, since 2×4787478919² = 45839908799738817122, 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 (4787478929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3142692 + ... + 3144214.

It is an arithmetic number, because the mean of its divisors is an integer number (216388950).

Almost surely, 2^4787478919 is an apocalyptic number.

4787478919 is a deficient number, since it is larger than the sum of its proper divisors (405855881).

4787478919 is a wasteful number, since it uses less digits than its factorization.

4787478919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1762 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 64.

The square root of 4787478919 is about 69191.6101778243. The cubic root of 4787478919 is about 1685.3972910513.

The spelling of 4787478919 in words is "four billion, seven hundred eighty-seven million, four hundred seventy-eight thousand, nine hundred nineteen".