4021744278000 has 320 divisors, whose sum is σ = 13260256289280. Its totient is φ = 1048379904000.

The previous prime is 4021744277981. The next prime is 4021744278001. The reversal of 4021744278000 is 8724471204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021744278000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021744278001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52623816 + ... + 52700184.

It is an arithmetic number, because the mean of its divisors is an integer number (41438300904).

Almost surely, 2^{4021744278000} is an apocalyptic number.

4021744278000 is a gapful number since it is divisible by the number (40) 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 4021744278000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6630128144640).

4021744278000 is an abundant number, since it is smaller than the sum of its proper divisors (9238512011280).

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

4021744278000 is a wasteful number, since it uses less digits than its factorization.

4021744278000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76593 (or 76577 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

The spelling of 4021744278000 in words is "four trillion, twenty-one billion, seven hundred forty-four million, two hundred seventy-eight thousand".