87326776416 has 144 divisors (see below), whose sum is σ = 258113553264. Its totient is φ = 25817088000.

The previous prime is 87326776409. The next prime is 87326776421. The reversal of 87326776416 is 61467762378.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384576 + ... + 567936.

It is an arithmetic number, because the mean of its divisors is an integer number (1792455231).

Almost surely, 2^87326776416 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 87326776416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129056776632).

87326776416 is an abundant number, since it is smaller than the sum of its proper divisors (170786776848).

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

87326776416 is a wasteful number, since it uses less digits than its factorization.

87326776416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183437 (or 183418 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 57.

The spelling of 87326776416 in words is "eighty-seven billion, three hundred twenty-six million, seven hundred seventy-six thousand, four hundred sixteen".