7221828507 has 8 divisors (see below), whose sum is σ = 9792310080. Its totient is φ = 4732949640.

The previous prime is 7221828473. The next prime is 7221828511. The reversal of 7221828507 is 7058281227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7221828507 - 2¹⁵ = 7221795739 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7221828517) 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, 20400469 + ... + 20400822.

It is an arithmetic number, because the mean of its divisors is an integer number (1224038760).

Almost surely, 2^7221828507 is an apocalyptic number.

7221828507 is a deficient number, since it is larger than the sum of its proper divisors (2570481573).

7221828507 is a wasteful number, since it uses less digits than its factorization.

7221828507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40801353.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 7221828507 is about 84981.3421110775. The cubic root of 7221828507 is about 1932.9282071227.

The spelling of 7221828507 in words is "seven billion, two hundred twenty-one million, eight hundred twenty-eight thousand, five hundred seven".