4128787924 has 12 divisors (see below), whose sum is σ = 7243047700. Its totient is φ = 2059345728.

The previous prime is 4128787919. The next prime is 4128787933. The reversal of 4128787924 is 4297878214.

4128787924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3332983824 + 795804100 = 57732^2 + 28210^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260219 + ... + 1263490.

Almost surely, 2^4128787924 is an apocalyptic number.

It is an amenable number.

4128787924 is a deficient number, since it is larger than the sum of its proper divisors (3114259776).

4128787924 is a wasteful number, since it uses less digits than its factorization.

4128787924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524122 (or 2524120 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The square root of 4128787924 is about 64255.6450749660. The cubic root of 4128787924 is about 1604.2579197108.

The spelling of 4128787924 in words is "four billion, one hundred twenty-eight million, seven hundred eighty-seven thousand, nine hundred twenty-four".