841000000000000 has 507 divisors, whose sum is σ = 2177234190110941. Its totient is φ = 324800000000000.

The previous prime is 840999999999989. The next prime is 841000000000067. The reversal of 841000000000000 is 148.

The square root of 841000000000000 is 29000000.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 19 ways, for example, as 839545525407744 + 1454474592256 = 28974912^2 + 1206016^2 .

It is a Duffinian number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 28999999999986 + ... + 29000000000014.

Almost surely, 2^{841000000000000} is an apocalyptic number.

841000000000000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

841000000000000 is the 29000000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 841000000000000

841000000000000 is an abundant number, since it is smaller than the sum of its proper divisors (1336234190110941).

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

841000000000000 is an frugal number, since it uses more digits than its factorization.

841000000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 841000000000000 its reverse (148), we get a palindrome (841000000000148).

The spelling of 841000000000000 in words is "eight hundred forty-one trillion", and thus it is an aban number.