7485803728 has 40 divisors (see below), whose sum is σ = 15647701608. Its totient is φ = 3448730112.

The previous prime is 7485803723. The next prime is 7485803753. The reversal of 7485803728 is 8273085847.

It can be written as a sum of positive squares in 4 ways, for example, as 173501584 + 7312302144 = 13172^2 + 85512^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485803723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83550 + ... + 148162.

Almost surely, 2^7485803728 is an apocalyptic number.

It is an amenable number.

7485803728 is an abundant number, since it is smaller than the sum of its proper divisors (8161897880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7485803728 is a wasteful number, since it uses less digits than its factorization.

7485803728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65191 (or 65185 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The square root of 7485803728 is about 86520.5393418233. The cubic root of 7485803728 is about 1956.1980066166.

The spelling of 7485803728 in words is "seven billion, four hundred eighty-five million, eight hundred three thousand, seven hundred twenty-eight".