5171661739 has 2 divisors, whose sum is σ = 5171661740. Its totient is φ = 5171661738.

The previous prime is 5171661673. The next prime is 5171661763. The reversal of 5171661739 is 9371661715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5171661739 - 2¹³ = 5171653547 is a prime.

It is not a weakly prime, because it can be changed into another prime (5171661799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585830869 + 2585830870.

It is an arithmetic number, because the mean of its divisors is an integer number (2585830870).

Almost surely, 2^5171661739 is an apocalyptic number.

5171661739 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171661739 is an equidigital number, since it uses as much as digits as its factorization.

5171661739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 5171661739 is about 71914.2665887653. The cubic root of 5171661739 is about 1729.3253340632.

The spelling of 5171661739 in words is "five billion, one hundred seventy-one million, six hundred sixty-one thousand, seven hundred thirty-nine".