87288788887 has 4 divisors (see below), whose sum is σ = 87290215416. Its totient is φ = 87287362360.

The previous prime is 87288788869. The next prime is 87288788911. The reversal of 87288788887 is 78888788278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78888788278 = 2 ⋅39444394139.

It is a cyclic number.

It is not a de Polignac number, because 87288788887 - 2⁷ = 87288788759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87288788087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617164 + ... + 745297.

It is an arithmetic number, because the mean of its divisors is an integer number (21822553854).

Almost surely, 2^87288788887 is an apocalyptic number.

87288788887 is a deficient number, since it is larger than the sum of its proper divisors (1426529).

87288788887 is a wasteful number, since it uses less digits than its factorization.

87288788887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426528.

The product of its digits is 1438646272, while the sum is 79.

The spelling of 87288788887 in words is "eighty-seven billion, two hundred eighty-eight million, seven hundred eighty-eight thousand, eight hundred eighty-seven".