2080979046581 has 2 divisors, whose sum is σ = 2080979046582. Its totient is φ = 2080979046580.

The previous prime is 2080979046547. The next prime is 2080979046583. The reversal of 2080979046581 is 1856409790802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1508391723556 + 572587323025 = 1228166^2 + 756695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2080979046581 - 2²² = 2080974852277 is a prime.

It is a super-2 number, since 2×2080979046581² (a number of 25 digits) contains 22 as substring.

Together with 2080979046583, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2080979046581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2080979046583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040489523290 + 1040489523291.

It is an arithmetic number, because the mean of its divisors is an integer number (1040489523291).

Almost surely, 2^{2080979046581} is an apocalyptic number.

It is an amenable number.

2080979046581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2080979046581 is an equidigital number, since it uses as much as digits as its factorization.

2080979046581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 2080979046581 in words is "two trillion, eighty billion, nine hundred seventy-nine million, forty-six thousand, five hundred eighty-one".