5379820081 has 2 divisors, whose sum is σ = 5379820082. Its totient is φ = 5379820080.

The previous prime is 5379820063. The next prime is 5379820097. The reversal of 5379820081 is 1800289735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3045384225 + 2334435856 = 55185^2 + 48316^2 .

It is a cyclic number.

It is not a de Polignac number, because 5379820081 - 2⁷ = 5379819953 is a prime.

It is a super-2 number, since 2×5379820081² = 57884928207861693122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5379820001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2689910040 + 2689910041.

It is an arithmetic number, because the mean of its divisors is an integer number (2689910041).

Almost surely, 2^5379820081 is an apocalyptic number.

It is an amenable number.

5379820081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5379820081 is an equidigital number, since it uses as much as digits as its factorization.

5379820081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 5379820081 is about 73347.2568062365. The cubic root of 5379820081 is about 1752.2224911913. Note that the first 3 decimals are identical.

The spelling of 5379820081 in words is "five billion, three hundred seventy-nine million, eight hundred twenty thousand, eighty-one".