87695977660 has 12 divisors (see below), whose sum is σ = 184161553128. Its totient is φ = 35078391056.

The previous prime is 87695977637. The next prime is 87695977673. The reversal of 87695977660 is 6677959678.

It is a self number, because there is not a number n which added to its sum of digits gives 87695977660.

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 3 ways as a sum of consecutive naturals, for example, 2192399422 + ... + 2192399461.

It is an arithmetic number, because the mean of its divisors is an integer number (15346796094).

Almost surely, 2^87695977660 is an apocalyptic number.

It is an amenable number.

87695977660 is an abundant number, since it is smaller than the sum of its proper divisors (96465575468).

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

87695977660 is a wasteful number, since it uses less digits than its factorization.

87695977660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384798892 (or 4384798890 counting only the distinct ones).

The product of its (nonzero) digits is 240045120, while the sum is 70.

The spelling of 87695977660 in words is "eighty-seven billion, six hundred ninety-five million, nine hundred seventy-seven thousand, six hundred sixty".