8020084260891 has 16 divisors (see below), whose sum is σ = 10832349832704. Its totient is φ = 5277631556064.

The previous prime is 8020084260791. The next prime is 8020084260931. The reversal of 8020084260891 is 1980624800208.

It is not a de Polignac number, because 8020084260891 - 2⁷ = 8020084260763 is a prime.

It is a super-2 number, since 2×8020084260891² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8020084260891.

It is not an unprimeable number, because it can be changed into a prime (8020084260491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45009795 + ... + 45187628.

It is an arithmetic number, because the mean of its divisors is an integer number (677021864544).

Almost surely, 2^{8020084260891} is an apocalyptic number.

8020084260891 is a deficient number, since it is larger than the sum of its proper divisors (2812265571813).

8020084260891 is a wasteful number, since it uses less digits than its factorization.

8020084260891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90197810.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 8020084260891 in words is "eight trillion, twenty billion, eighty-four million, two hundred sixty thousand, eight hundred ninety-one".