872535203520 has 112 divisors (see below), whose sum is σ = 2790229908480. Its totient is φ = 231002090496.

The previous prime is 872535203513. The next prime is 872535203537. The reversal of 872535203520 is 25302535278.

It is a super-2 number, since 2×872535203520² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3135952 + ... + 3402831.

It is an arithmetic number, because the mean of its divisors is an integer number (24912767040).

Almost surely, 2^872535203520 is an apocalyptic number.

872535203520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

872535203520 is an abundant number, since it is smaller than the sum of its proper divisors (1917694704960).

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

872535203520 is a wasteful number, since it uses less digits than its factorization.

872535203520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538942 (or 6538932 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

Adding to 872535203520 its reverse (25302535278), we get a palindrome (897837738798).

The spelling of 872535203520 in words is "eight hundred seventy-two billion, five hundred thirty-five million, two hundred three thousand, five hundred twenty".