8320628702500 has 135 divisors (see below), whose sum is σ = 18811546372773. Its totient is φ = 3219157800000.

The previous prime is 8320628702479. The next prime is 8320628702537. The reversal of 8320628702500 is 52078260238.

The square root of 8320628702500 is 2884550.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 7807296575716 + 513332126784 = 2794154^2 + 716472^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4471051570 + ... + 4471053430.

Almost surely, 2^{8320628702500} is an apocalyptic number.

8320628702500 is the 2884550-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8320628702500

8320628702500 is an abundant number, since it is smaller than the sum of its proper divisors (10490917670273).

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

8320628702500 is an frugal number, since it uses more digits than its factorization.

8320628702500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 8320628702500 in words is "eight trillion, three hundred twenty billion, six hundred twenty-eight million, seven hundred two thousand, five hundred".