87009722280 has 192 divisors, whose sum is σ = 305751438720. Its totient is φ = 21332160000.

The previous prime is 87009722209. The next prime is 87009722339. The reversal of 87009722280 is 8222790078.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1137645 + ... + 1211715.

It is an arithmetic number, because the mean of its divisors is an integer number (1592455410).

Almost surely, 2^87009722280 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 87009722280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152875719360).

87009722280 is an abundant number, since it is smaller than the sum of its proper divisors (218741716440).

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

87009722280 is a wasteful number, since it uses less digits than its factorization.

87009722280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74352 (or 74345 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 87009722280 in words is "eighty-seven billion, nine million, seven hundred twenty-two thousand, two hundred eighty".