87993895808 has 288 divisors, whose sum is σ = 227121700680. Its totient is φ = 33657845760.

The previous prime is 87993895793. The next prime is 87993895813. The reversal of 87993895808 is 80859839978.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78355535 + ... + 78356657.

Almost surely, 2^87993895808 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 87993895808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113560850340).

87993895808 is an abundant number, since it is smaller than the sum of its proper divisors (139127804872).

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

87993895808 is a wasteful number, since it uses less digits than its factorization.

87993895808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 74.

The spelling of 87993895808 in words is "eighty-seven billion, nine hundred ninety-three million, eight hundred ninety-five thousand, eight hundred eight".