87888117312 has 112 divisors (see below), whose sum is σ = 260086652800. Its totient is φ = 29101939200.

The previous prime is 87888117311. The next prime is 87888117367. The reversal of 87888117312 is 21371188878.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (87888117311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92514 + ... + 429342.

Almost surely, 2^87888117312 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 87888117312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130043326400).

87888117312 is an abundant number, since it is smaller than the sum of its proper divisors (172198535488).

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

87888117312 is a wasteful number, since it uses less digits than its factorization.

87888117312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337001 (or 336985 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 54.

The spelling of 87888117312 in words is "eighty-seven billion, eight hundred eighty-eight million, one hundred seventeen thousand, three hundred twelve".