6195514861 has 2 divisors, whose sum is σ = 6195514862. Its totient is φ = 6195514860.

The previous prime is 6195514849. The next prime is 6195514931. The reversal of 6195514861 is 1684155916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5177522025 + 1017992836 = 71955^2 + 31906^2 .

It is a cyclic number.

It is not a de Polignac number, because 6195514861 - 2⁷ = 6195514733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6195524861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3097757430 + 3097757431.

It is an arithmetic number, because the mean of its divisors is an integer number (3097757431).

Almost surely, 2^6195514861 is an apocalyptic number.

It is an amenable number.

6195514861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6195514861 is an equidigital number, since it uses as much as digits as its factorization.

6195514861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 46.

The square root of 6195514861 is about 78711.5929263282. The cubic root of 6195514861 is about 1836.6474535550.

The spelling of 6195514861 in words is "six billion, one hundred ninety-five million, five hundred fourteen thousand, eight hundred sixty-one".