8030821067861 has 8 divisors (see below), whose sum is σ = 8321432517120. Its totient is φ = 7741122057648.

The previous prime is 8030821067831. The next prime is 8030821067921. The reversal of 8030821067861 is 1687601280308.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8030821067861 - 2³⁴ = 8013641198677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8030821067831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228091841 + ... + 228127046.

It is an arithmetic number, because the mean of its divisors is an integer number (1040179064640).

Almost surely, 2^{8030821067861} is an apocalyptic number.

It is an amenable number.

8030821067861 is a deficient number, since it is larger than the sum of its proper divisors (290611449259).

8030821067861 is a wasteful number, since it uses less digits than its factorization.

8030821067861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456219523.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 8030821067861 in words is "eight trillion, thirty billion, eight hundred twenty-one million, sixty-seven thousand, eight hundred sixty-one".