87391007088 has 240 divisors, whose sum is σ = 286264177920. Its totient is φ = 22485703680.

The previous prime is 87391007047. The next prime is 87391007113. The reversal of 87391007088 is 88070019378.

It is a self number, because there is not a number n which added to its sum of digits gives 87391007088.

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, 4340148 + ... + 4360236.

It is an arithmetic number, because the mean of its divisors is an integer number (1192767408).

Almost surely, 2^87391007088 is an apocalyptic number.

87391007088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87391007088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143132088960).

87391007088 is an abundant number, since it is smaller than the sum of its proper divisors (198873170832).

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

87391007088 is a wasteful number, since it uses less digits than its factorization.

87391007088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20236 (or 20219 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 87391007088 in words is "eighty-seven billion, three hundred ninety-one million, seven thousand, eighty-eight".