4128708956 has 12 divisors (see below), whose sum is σ = 7241702160. Its totient is φ = 2059651200.

The previous prime is 4128708943. The next prime is 4128709003. The reversal of 4128708956 is 6598078214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173845 + ... + 1177356.

It is an arithmetic number, because the mean of its divisors is an integer number (603475180).

Almost surely, 2^4128708956 is an apocalyptic number.

It is an amenable number.

4128708956 is a deficient number, since it is larger than the sum of its proper divisors (3112993204).

4128708956 is a wasteful number, since it uses less digits than its factorization.

4128708956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351644 (or 2351642 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 4128708956 is about 64255.0305890519. The cubic root of 4128708956 is about 1604.2476918627.

The spelling of 4128708956 in words is "four billion, one hundred twenty-eight million, seven hundred eight thousand, nine hundred fifty-six".