87267934784 has 56 divisors (see below), whose sum is σ = 178133200248. Its totient is φ = 42387701760.

The previous prime is 87267934769. The next prime is 87267934843. The reversal of 87267934784 is 48743976278.

It can be written as a sum of positive squares in 4 ways, for example, as 45570294784 + 41697640000 = 213472^2 + 204200^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87267934784.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489142 + ... + 1546634.

Almost surely, 2^87267934784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87267934784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89066600124).

87267934784 is an abundant number, since it is smaller than the sum of its proper divisors (90865265464).

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

87267934784 is a wasteful number, since it uses less digits than its factorization.

87267934784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58183 (or 58173 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 65.

The spelling of 87267934784 in words is "eighty-seven billion, two hundred sixty-seven million, nine hundred thirty-four thousand, seven hundred eighty-four".