7128201744 has 40 divisors (see below), whose sum is σ = 20460580320. Its totient is φ = 2376067104.

The previous prime is 7128201683. The next prime is 7128201889. The reversal of 7128201744 is 4471028217.

It is a super-2 number, since 2×7128201744² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7128201699 and 7128201708.

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 7 ways as a sum of consecutive naturals, for example, 8249802 + ... + 8250665.

It is an arithmetic number, because the mean of its divisors is an integer number (511514508).

Almost surely, 2^7128201744 is an apocalyptic number.

It is an amenable number.

7128201744 is an abundant number, since it is smaller than the sum of its proper divisors (13332378576).

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

7128201744 is a wasteful number, since it uses less digits than its factorization.

7128201744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16500484 (or 16500472 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7128201744 is about 84428.6784451824. The cubic root of 7128201744 is about 1924.5387544145.

The spelling of 7128201744 in words is "seven billion, one hundred twenty-eight million, two hundred one thousand, seven hundred forty-four".