2821942895648 has 192 divisors, whose sum is σ = 6044760691200. Its totient is φ = 1292788654080.

The previous prime is 2821942895641. The next prime is 2821942895669. The reversal of 2821942895648 is 8465982491282.

It is not an unprimeable number, because it can be changed into a prime (2821942895641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1577384738 + ... + 1577386526.

It is an arithmetic number, because the mean of its divisors is an integer number (31483128600).

Almost surely, 2^{2821942895648} 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 2821942895648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3022380345600).

2821942895648 is an abundant number, since it is smaller than the sum of its proper divisors (3222817795552).

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

2821942895648 is a wasteful number, since it uses less digits than its factorization.

2821942895648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395 (or 2387 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 68.

The spelling of 2821942895648 in words is "two trillion, eight hundred twenty-one billion, nine hundred forty-two million, eight hundred ninety-five thousand, six hundred forty-eight".