6538763461 has 2 divisors, whose sum is σ = 6538763462. Its totient is φ = 6538763460.

The previous prime is 6538763411. The next prime is 6538763471. The reversal of 6538763461 is 1643678356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6523631361 + 15132100 = 80769^2 + 3890^2 .

It is a cyclic number.

It is not a de Polignac number, because 6538763461 - 2⁹ = 6538762949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6538763401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3269381730 + 3269381731.

It is an arithmetic number, because the mean of its divisors is an integer number (3269381731).

Almost surely, 2^6538763461 is an apocalyptic number.

It is an amenable number.

6538763461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6538763461 is an equidigital number, since it uses as much as digits as its factorization.

6538763461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 49.

The square root of 6538763461 is about 80862.6209134975. The cubic root of 6538763461 is about 1869.9581010945.

The spelling of 6538763461 in words is "six billion, five hundred thirty-eight million, seven hundred sixty-three thousand, four hundred sixty-one".