87170559762 has 128 divisors (see below), whose sum is σ = 228283453440. Its totient is φ = 21741143040.

The previous prime is 87170559739. The next prime is 87170559769. The reversal of 87170559762 is 26795507178.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (87170559769) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 119863 + ... + 434405.

It is an arithmetic number, because the mean of its divisors is an integer number (1783464480).

Almost surely, 2^87170559762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87170559762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114141726720).

87170559762 is an abundant number, since it is smaller than the sum of its proper divisors (141112893678).

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

87170559762 is a wasteful number, since it uses less digits than its factorization.

87170559762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314608.

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 87170559762 in words is "eighty-seven billion, one hundred seventy million, five hundred fifty-nine thousand, seven hundred sixty-two".