3928221276000 has 384 divisors, whose sum is σ = 14814656123904. Its totient is φ = 891322675200.

The previous prime is 3928221275999. The next prime is 3928221276011. The reversal of 3928221276000 is 6721228293.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 11337327 + ... + 11678673.

It is an arithmetic number, because the mean of its divisors is an integer number (38579833656).

Almost surely, 2^{3928221276000} is an apocalyptic number.

3928221276000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3928221276000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7407328061952).

3928221276000 is an abundant number, since it is smaller than the sum of its proper divisors (10886434847904).

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

3928221276000 is a wasteful number, since it uses less digits than its factorization.

3928221276000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341519 (or 341501 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 3928221276000 in words is "three trillion, nine hundred twenty-eight billion, two hundred twenty-one million, two hundred seventy-six thousand".