87961258588 has 24 divisors (see below), whose sum is σ = 176088384864. Its totient is φ = 37662139200.

The previous prime is 87961258573. The next prime is 87961258607. The reversal of 87961258588 is 88585216978.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1450723 + ... + 1510138.

It is an arithmetic number, because the mean of its divisors is an integer number (7337016036).

Almost surely, 2^87961258588 is an apocalyptic number.

It is an amenable number.

87961258588 is an abundant number, since it is smaller than the sum of its proper divisors (88127126276).

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

87961258588 is a wasteful number, since it uses less digits than its factorization.

87961258588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961933 (or 2961931 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 67.

The spelling of 87961258588 in words is "eighty-seven billion, nine hundred sixty-one million, two hundred fifty-eight thousand, five hundred eighty-eight".