287825621125 has 64 divisors (see below), whose sum is σ = 415651991040. Its totient is φ = 194909760000.

The previous prime is 287825621123. The next prime is 287825621129. The reversal of 287825621125 is 521126528782.

It is not a de Polignac number, because 287825621125 - 2¹ = 287825621123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287825621123) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 36141394 + ... + 36149356.

It is an arithmetic number, because the mean of its divisors is an integer number (6494562360).

Almost surely, 2^287825621125 is an apocalyptic number.

287825621125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287825621125 is a deficient number, since it is larger than the sum of its proper divisors (127826369915).

287825621125 is a wasteful number, since it uses less digits than its factorization.

287825621125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495 (or 8485 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The spelling of 287825621125 in words is "two hundred eighty-seven billion, eight hundred twenty-five million, six hundred twenty-one thousand, one hundred twenty-five".