87020986108 has 36 divisors (see below), whose sum is σ = 178805513880. Its totient is φ = 36946150752.

The previous prime is 87020986097. The next prime is 87020986127. The reversal of 87020986108 is 80168902078.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2053723 + ... + 2095666.

It is an arithmetic number, because the mean of its divisors is an integer number (4966819830).

Almost surely, 2^87020986108 is an apocalyptic number.

It is an amenable number.

87020986108 is an abundant number, since it is smaller than the sum of its proper divisors (91784527772).

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

87020986108 is a wasteful number, since it uses less digits than its factorization.

87020986108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149514 (or 4149505 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 87020986108 in words is "eighty-seven billion, twenty million, nine hundred eighty-six thousand, one hundred eight".