8021841287810 has 144 divisors (see below), whose sum is σ = 18094249343808. Its totient is φ = 2552098752000.

The previous prime is 8021841287797. The next prime is 8021841287813. The reversal of 8021841287810 is 187821481208.

It is a super-2 number, since 2×8021841287810² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8021841287813) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9655385 + ... + 10453235.

It is an arithmetic number, because the mean of its divisors is an integer number (125654509332).

Almost surely, 2^{8021841287810} is an apocalyptic number.

8021841287810 is an abundant number, since it is smaller than the sum of its proper divisors (10072408055998).

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

8021841287810 is a wasteful number, since it uses less digits than its factorization.

8021841287810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797977 (or 797953 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 50.

The spelling of 8021841287810 in words is "eight trillion, twenty-one billion, eight hundred forty-one million, two hundred eighty-seven thousand, eight hundred ten".