7428709850 has 36 divisors (see below), whose sum is σ = 13975141434. Its totient is φ = 2937939840.

The previous prime is 7428709829. The next prime is 7428709853. The reversal of 7428709850 is 589078247.

It can be written as a sum of positive squares in 9 ways, for example, as 7059649 + 7421650201 = 2657^2 + 86149^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (7428709853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 386672 + ... + 405428.

Almost surely, 2^7428709850 is an apocalyptic number.

7428709850 is a deficient number, since it is larger than the sum of its proper divisors (6546431584).

7428709850 is a wasteful number, since it uses less digits than its factorization.

7428709850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18947 (or 18853 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The square root of 7428709850 is about 86189.9637428860. The cubic root of 7428709850 is about 1951.2120319478.

The spelling of 7428709850 in words is "seven billion, four hundred twenty-eight million, seven hundred nine thousand, eight hundred fifty".