5191655813 has 2 divisors, whose sum is σ = 5191655814. Its totient is φ = 5191655812.

The previous prime is 5191655773. The next prime is 5191655827. The reversal of 5191655813 is 3185561915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5186448289 + 5207524 = 72017^2 + 2282^2 .

It is a cyclic number.

It is not a de Polignac number, because 5191655813 - 2¹⁶ = 5191590277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5191655213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595827906 + 2595827907.

It is an arithmetic number, because the mean of its divisors is an integer number (2595827907).

Almost surely, 2^5191655813 is an apocalyptic number.

It is an amenable number.

5191655813 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191655813 is an equidigital number, since it uses as much as digits as its factorization.

5191655813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 44.

The square root of 5191655813 is about 72053.1457536727. The cubic root of 5191655813 is about 1731.5510400787.

The spelling of 5191655813 in words is "five billion, one hundred ninety-one million, six hundred fifty-five thousand, eight hundred thirteen".