921903116480 has 168 divisors, whose sum is σ = 2270833834752. Its totient is φ = 356449959936.

The previous prime is 921903116471. The next prime is 921903116503. The reversal of 921903116480 is 84611309129.

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, 57384929 + ... + 57400991.

It is an arithmetic number, because the mean of its divisors is an integer number (13516868064).

Almost surely, 2^921903116480 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 921903116480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135416917376).

921903116480 is an abundant number, since it is smaller than the sum of its proper divisors (1348930718272).

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

921903116480 is a wasteful number, since it uses less digits than its factorization.

921903116480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16263 (or 16210 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 921903116480 in words is "nine hundred twenty-one billion, nine hundred three million, one hundred sixteen thousand, four hundred eighty".