87808322380878 has 144 divisors (see below), whose sum is σ = 212335867231488. Its totient is φ = 26199655970400.

The previous prime is 87808322380861. The next prime is 87808322381033.

87808322380878 is a `hidden beast` number, since 8 + 7 + 80 + 83 + 22 + 380 + 8 + 78 = 666.

87808322380878 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 327177883 + ... + 327446153.

It is an arithmetic number, because the mean of its divisors is an integer number (1474554633552).

Almost surely, 2^{87808322380878} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87808322380878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106167933615744).

87808322380878 is an abundant number, since it is smaller than the sum of its proper divisors (124527544850610).

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

87808322380878 is a wasteful number, since it uses less digits than its factorization.

87808322380878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270611 (or 270597 counting only the distinct ones).

The product of its (nonzero) digits is 462422016, while the sum is 72.

The spelling of 87808322380878 in words is "eighty-seven trillion, eight hundred eight billion, three hundred twenty-two million, three hundred eighty thousand, eight hundred seventy-eight".