87825459852 has 36 divisors (see below), whose sum is σ = 239080419760. Its totient is φ = 27023218272.

The previous prime is 87825459851. The next prime is 87825459863. The reversal of 87825459852 is 25895452878.

87825459852 is a `hidden beast` number, since 8 + 7 + 8 + 2 + 545 + 9 + 85 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×87825459852² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87825459852.

It is not an unprimeable number, because it can be changed into a prime (87825459851) 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 11 ways as a sum of consecutive naturals, for example, 93830152 + ... + 93831087.

Almost surely, 2^87825459852 is an apocalyptic number.

It is an amenable number.

87825459852 is an abundant number, since it is smaller than the sum of its proper divisors (151254959908).

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

87825459852 is a wasteful number, since it uses less digits than its factorization.

87825459852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187661262 (or 187661257 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 63.

The spelling of 87825459852 in words is "eighty-seven billion, eight hundred twenty-five million, four hundred fifty-nine thousand, eight hundred fifty-two".