87965815860 has 192 divisors, whose sum is σ = 298455628800. Its totient is φ = 21378898944.

The previous prime is 87965815831. The next prime is 87965815879. The reversal of 87965815860 is 6851856978.

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 63 ways as a sum of consecutive naturals, for example, 475272 + ... + 633888.

It is an arithmetic number, because the mean of its divisors is an integer number (1554456400).

Almost surely, 2^87965815860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87965815860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149227814400).

87965815860 is an abundant number, since it is smaller than the sum of its proper divisors (210489812940).

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

87965815860 is a wasteful number, since it uses less digits than its factorization.

87965815860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158727 (or 158719 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 63.

The spelling of 87965815860 in words is "eighty-seven billion, nine hundred sixty-five million, eight hundred fifteen thousand, eight hundred sixty".