87035090020 has 12 divisors (see below), whose sum is σ = 182773689084. Its totient is φ = 34814036000.

The previous prime is 87035089969. The next prime is 87035090089. The reversal of 87035090020 is 2009053078.

It can be written as a sum of positive squares in 2 ways, for example, as 68029158976 + 19005931044 = 260824^2 + 137862^2 .

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, 2175877231 + ... + 2175877270.

It is an arithmetic number, because the mean of its divisors is an integer number (15231140757).

Almost surely, 2^87035090020 is an apocalyptic number.

It is an amenable number.

87035090020 is an abundant number, since it is smaller than the sum of its proper divisors (95738599064).

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

87035090020 is a wasteful number, since it uses less digits than its factorization.

87035090020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351754510 (or 4351754508 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 87035090020 in words is "eighty-seven billion, thirty-five million, ninety thousand, twenty".