872225203423520 has 24 divisors (see below), whose sum is σ = 2060632043088444. Its totient is φ = 348890081369344.

The previous prime is 872225203423507. The next prime is 872225203423579. The reversal of 872225203423520 is 25324302522278.

It can be written as a sum of positive squares in 2 ways, for example, as 863892720770704 + 8332482652816 = 29392052^2 + 2886604^2 .

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 3 ways as a sum of consecutive naturals, for example, 2725703760539 + ... + 2725703760858.

Almost surely, 2^{872225203423520} is an apocalyptic number.

872225203423520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

872225203423520 is an abundant number, since it is smaller than the sum of its proper divisors (1188406839664924).

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

872225203423520 is a wasteful number, since it uses less digits than its factorization.

872225203423520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451407521412 (or 5451407521404 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 47.

Adding to 872225203423520 its reverse (25324302522278), we get a palindrome (897549505945798).

The spelling of 872225203423520 in words is "eight hundred seventy-two trillion, two hundred twenty-five billion, two hundred three million, four hundred twenty-three thousand, five hundred twenty".