87161933824 has 117 divisors (see below), whose sum is σ = 203068298667. Its totient is φ = 37298429952.

The previous prime is 87161933783. The next prime is 87161933893. The reversal of 87161933824 is 42833916178.

The square root of 87161933824 is 295232.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 132263607 + ... + 132264265.

Almost surely, 2^87161933824 is an apocalyptic number.

87161933824 is the 295232-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87161933824

87161933824 is an abundant number, since it is smaller than the sum of its proper divisors (115906364843).

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

87161933824 is an frugal number, since it uses more digits than its factorization.

87161933824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 668 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The spelling of 87161933824 in words is "eighty-seven billion, one hundred sixty-one million, nine hundred thirty-three thousand, eight hundred twenty-four".