7228643578730 has 32 divisors (see below), whose sum is σ = 15049513390464. Its totient is φ = 2448531936576.

The previous prime is 7228643578699. The next prime is 7228643578753. The reversal of 7228643578730 is 378753468227.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622080557 + ... + 622092176.

It is an arithmetic number, because the mean of its divisors is an integer number (470297293452).

Almost surely, 2^{7228643578730} is an apocalyptic number.

7228643578730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7228643578730 is an abundant number, since it is smaller than the sum of its proper divisors (7820869811734).

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

7228643578730 is a wasteful number, since it uses less digits than its factorization.

7228643578730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244172830.

The product of its (nonzero) digits is 94832640, while the sum is 62.

The spelling of 7228643578730 in words is "seven trillion, two hundred twenty-eight billion, six hundred forty-three million, five hundred seventy-eight thousand, seven hundred thirty".