87831169728 has 28 divisors (see below), whose sum is σ = 232386637080. Its totient is φ = 29277056512.

The previous prime is 87831169639. The next prime is 87831169747. The reversal of 87831169728 is 82796113878.

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, 228726813 + ... + 228727196.

Almost surely, 2^87831169728 is an apocalyptic number.

It is an amenable number.

87831169728 is an abundant number, since it is smaller than the sum of its proper divisors (144555467352).

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

87831169728 is a wasteful number, since it uses less digits than its factorization.

87831169728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457454024 (or 457454014 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 60.

The spelling of 87831169728 in words is "eighty-seven billion, eight hundred thirty-one million, one hundred sixty-nine thousand, seven hundred twenty-eight".