928378913280 has 1280 divisors, whose sum is σ = 3828810940416. Its totient is φ = 186643906560.

The previous prime is 928378913263. The next prime is 928378913281. The reversal of 928378913280 is 82319873829.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (928378913281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1581565147 + ... + 1581565733.

Almost surely, 2^928378913280 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 928378913280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914405470208).

928378913280 is an abundant number, since it is smaller than the sum of its proper divisors (2900432027136).

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

928378913280 is a wasteful number, since it uses less digits than its factorization.

928378913280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 928378913280 in words is "nine hundred twenty-eight billion, three hundred seventy-eight million, nine hundred thirteen thousand, two hundred eighty".