87959969712 has 120 divisors (see below), whose sum is σ = 255395059920. Its totient is φ = 29307121920.

The previous prime is 87959969701. The next prime is 87959969731. The reversal of 87959969712 is 21796995978.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13764214 + ... + 13770602.

It is an arithmetic number, because the mean of its divisors is an integer number (2128292166).

Almost surely, 2^87959969712 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 87959969712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127697529960).

87959969712 is an abundant number, since it is smaller than the sum of its proper divisors (167435090208).

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

87959969712 is a wasteful number, since it uses less digits than its factorization.

87959969712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953 (or 9935 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 72.

The spelling of 87959969712 in words is "eighty-seven billion, nine hundred fifty-nine million, nine hundred sixty-nine thousand, seven hundred twelve".