4947002128 has 10 divisors (see below), whose sum is σ = 9584816654. Its totient is φ = 2473501056.

The previous prime is 4947002117. The next prime is 4947002143. The reversal of 4947002128 is 8212007494.

It can be written as a sum of positive squares in only one way, i.e., 3050573824 + 1896428304 = 55232^2 + 43548^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154593801 + ... + 154593832.

Almost surely, 2^4947002128 is an apocalyptic number.

It is an amenable number.

4947002128 is a deficient number, since it is larger than the sum of its proper divisors (4637814526).

4947002128 is a wasteful number, since it uses less digits than its factorization.

4947002128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309187641 (or 309187635 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 4947002128 is about 70334.9282220434. The cubic root of 4947002128 is about 1703.9128012716.

The spelling of 4947002128 in words is "four billion, nine hundred forty-seven million, two thousand, one hundred twenty-eight".