87687348894 has 96 divisors (see below), whose sum is σ = 208718359200. Its totient is φ = 26498949120.

The previous prime is 87687348887. The next prime is 87687348911. The reversal of 87687348894 is 49884378678.

87687348894 is a `hidden beast` number, since 8 + 76 + 8 + 73 + 488 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1081614 + ... + 1159854.

It is an arithmetic number, because the mean of its divisors is an integer number (2174149575).

Almost surely, 2^87687348894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87687348894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104359179600).

87687348894 is an abundant number, since it is smaller than the sum of its proper divisors (121031010306).

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

87687348894 is a wasteful number, since it uses less digits than its factorization.

87687348894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78410 (or 78407 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 87687348894 in words is "eighty-seven billion, six hundred eighty-seven million, three hundred forty-eight thousand, eight hundred ninety-four".