87804426528 has 432 divisors, whose sum is σ = 314023469760. Its totient is φ = 23066975232.

The previous prime is 87804426527. The next prime is 87804426557. The reversal of 87804426528 is 82562440878.

87804426528 is a `hidden beast` number, since 8 + 78 + 0 + 4 + 42 + 6 + 528 = 666.

It is not an unprimeable number, because it can be changed into a prime (87804426527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56320213 + ... + 56321771.

It is an arithmetic number, because the mean of its divisors is an integer number (726906180).

Almost surely, 2^87804426528 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 87804426528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157011734880).

87804426528 is an abundant number, since it is smaller than the sum of its proper divisors (226219043232).

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

87804426528 is a wasteful number, since it uses less digits than its factorization.

87804426528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 87804426528 in words is "eighty-seven billion, eight hundred four million, four hundred twenty-six thousand, five hundred twenty-eight".