87058021068 has 36 divisors (see below), whose sum is σ = 222535960920. Its totient is φ = 28693279296.

The previous prime is 87058021049. The next prime is 87058021117. The reversal of 87058021068 is 86012085078.

87058021068 is a `hidden beast` number, since 8 + 7 + 0 + 580 + 2 + 1 + 0 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×87058021068³ (a number of 34 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 13582630 + ... + 13589037.

It is an arithmetic number, because the mean of its divisors is an integer number (6181554470).

Almost surely, 2^87058021068 is an apocalyptic number.

It is an amenable number.

87058021068 is an abundant number, since it is smaller than the sum of its proper divisors (135477939852).

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

87058021068 is a wasteful number, since it uses less digits than its factorization.

87058021068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27171766 (or 27171761 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 87058021068 in words is "eighty-seven billion, fifty-eight million, twenty-one thousand, sixty-eight".