6315186461 has 2 divisors, whose sum is σ = 6315186462. Its totient is φ = 6315186460.

The previous prime is 6315186457. The next prime is 6315186463. The reversal of 6315186461 is 1646815136.

6315186461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5993701561 + 321484900 = 77419^2 + 17930^2 .

It is a cyclic number.

It is not a de Polignac number, because 6315186461 - 2² = 6315186457 is a prime.

Together with 6315186463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6315186463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157593230 + 3157593231.

It is an arithmetic number, because the mean of its divisors is an integer number (3157593231).

Almost surely, 2^6315186461 is an apocalyptic number.

It is an amenable number.

6315186461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315186461 is an equidigital number, since it uses as much as digits as its factorization.

6315186461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 6315186461 is about 79468.1474617346. The cubic root of 6315186461 is about 1848.3975859956.

The spelling of 6315186461 in words is "six billion, three hundred fifteen million, one hundred eighty-six thousand, four hundred sixty-one".