9877259081712 has 160 divisors (see below), whose sum is σ = 28061489664000. Its totient is φ = 2968950481920.

The previous prime is 9877259081693. The next prime is 9877259081777. The reversal of 9877259081712 is 2171809527789.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32373489 + ... + 32677167.

It is an arithmetic number, because the mean of its divisors is an integer number (175384310400).

Almost surely, 2^{9877259081712} 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 9877259081712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14030744832000).

9877259081712 is an abundant number, since it is smaller than the sum of its proper divisors (18184230582288).

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

9877259081712 is a wasteful number, since it uses less digits than its factorization.

9877259081712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304199 (or 304193 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 66.

The spelling of 9877259081712 in words is "nine trillion, eight hundred seventy-seven billion, two hundred fifty-nine million, eighty-one thousand, seven hundred twelve".