87868633528 has 32 divisors (see below), whose sum is σ = 177502066560. Its totient is φ = 40537607040.

The previous prime is 87868633453. The next prime is 87868633603. The reversal of 87868633528 is 82533686878.

It is an interprime number because it is at equal distance from previous prime (87868633453) and next prime (87868633603).

It is a self number, because there is not a number n which added to its sum of digits gives 87868633528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70201 + ... + 425047.

It is an arithmetic number, because the mean of its divisors is an integer number (5546939580).

Almost surely, 2^87868633528 is an apocalyptic number.

It is an amenable number.

87868633528 is an abundant number, since it is smaller than the sum of its proper divisors (89633433032).

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

87868633528 is a wasteful number, since it uses less digits than its factorization.

87868633528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357247 (or 357243 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 64.

The spelling of 87868633528 in words is "eighty-seven billion, eight hundred sixty-eight million, six hundred thirty-three thousand, five hundred twenty-eight".