87956521760 has 24 divisors (see below), whose sum is σ = 207797283036. Its totient is φ = 35182608640.

The previous prime is 87956521733. The next prime is 87956521817. The reversal of 87956521760 is 6712565978.

It can be written as a sum of positive squares in 2 ways, for example, as 84944268304 + 3012253456 = 291452^2 + 54884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87956521696 and 87956521705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274863971 + ... + 274864290.

Almost surely, 2^87956521760 is an apocalyptic number.

87956521760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87956521760 is an abundant number, since it is smaller than the sum of its proper divisors (119840761276).

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

87956521760 is a wasteful number, since it uses less digits than its factorization.

87956521760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549728276 (or 549728268 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 87956521760 in words is "eighty-seven billion, nine hundred fifty-six million, five hundred twenty-one thousand, seven hundred sixty".