5939117581 has 2 divisors, whose sum is σ = 5939117582. Its totient is φ = 5939117580.

The previous prime is 5939117543. The next prime is 5939117623. The reversal of 5939117581 is 1857119395.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5881509481 + 57608100 = 76691^2 + 7590^2 .

It is a cyclic number.

It is not a de Polignac number, because 5939117581 - 2¹⁷ = 5938986509 is a prime.

It is a super-2 number, since 2×5939117581² = 70546235281886583122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5939117521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2969558790 + 2969558791.

It is an arithmetic number, because the mean of its divisors is an integer number (2969558791).

Almost surely, 2^5939117581 is an apocalyptic number.

It is an amenable number.

5939117581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5939117581 is an equidigital number, since it uses as much as digits as its factorization.

5939117581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 49.

The square root of 5939117581 is about 77065.6705738684. The cubic root of 5939117581 is about 1810.9535365225.

The spelling of 5939117581 in words is "five billion, nine hundred thirty-nine million, one hundred seventeen thousand, five hundred eighty-one".