87569331277780 has 192 divisors, whose sum is σ = 203798049960960. Its totient is φ = 31340574720000.

The previous prime is 87569331277777. The next prime is 87569331277801. The reversal of 87569331277780 is 8777213396578.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10836443340 + ... + 10836451420.

It is an arithmetic number, because the mean of its divisors is an integer number (1061448176880).

Almost surely, 2^{87569331277780} 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 87569331277780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101899024980480).

87569331277780 is an abundant number, since it is smaller than the sum of its proper divisors (116228718683180).

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

87569331277780 is a wasteful number, since it uses less digits than its factorization.

87569331277780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082 (or 10080 counting only the distinct ones).

The product of its (nonzero) digits is 746807040, while the sum is 73.

The spelling of 87569331277780 in words is "eighty-seven trillion, five hundred sixty-nine billion, three hundred thirty-one million, two hundred seventy-seven thousand, seven hundred eighty".