121788928608 has 192 divisors, whose sum is σ = 341181082368. Its totient is φ = 37907251200.

The previous prime is 121788928579. The next prime is 121788928619. The reversal of 121788928608 is 806829887121.

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, 202643508 + ... + 202644108.

It is an arithmetic number, because the mean of its divisors is an integer number (1776984804).

Almost surely, 2^121788928608 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 121788928608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170590541184).

121788928608 is an abundant number, since it is smaller than the sum of its proper divisors (219392153760).

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

121788928608 is a wasteful number, since it uses less digits than its factorization.

121788928608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 60.

The spelling of 121788928608 in words is "one hundred twenty-one billion, seven hundred eighty-eight million, nine hundred twenty-eight thousand, six hundred eight".