5195264861 has 2 divisors, whose sum is σ = 5195264862. Its totient is φ = 5195264860.

The previous prime is 5195264813. The next prime is 5195264873. The reversal of 5195264861 is 1684625915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4599416761 + 595848100 = 67819^2 + 24410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5195264861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5195264881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2597632430 + 2597632431.

It is an arithmetic number, because the mean of its divisors is an integer number (2597632431).

Almost surely, 2^5195264861 is an apocalyptic number.

It is an amenable number.

5195264861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5195264861 is an equidigital number, since it uses as much as digits as its factorization.

5195264861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 5195264861 is about 72078.1857499202. The cubic root of 5195264861 is about 1731.9521839859.

The spelling of 5195264861 in words is "five billion, one hundred ninety-five million, two hundred sixty-four thousand, eight hundred sixty-one".