87825471568 has 20 divisors (see below), whose sum is σ = 175650944128. Its totient is φ = 42496195680.

The previous prime is 87825471533. The next prime is 87825471571. The reversal of 87825471568 is 86517452878.

It is a happy number.

87825471568 is an admirable number.

It is a super-2 number, since 2×87825471568² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88533246 + ... + 88534237.

Almost surely, 2^87825471568 is an apocalyptic number.

It is an amenable number.

87825471568 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87825471568 is a wasteful number, since it uses less digits than its factorization.

87825471568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177067522 (or 177067516 counting only the distinct ones).

The product of its digits is 30105600, while the sum is 61.

The spelling of 87825471568 in words is "eighty-seven billion, eight hundred twenty-five million, four hundred seventy-one thousand, five hundred sixty-eight".