6534135851 has 2 divisors, whose sum is σ = 6534135852. Its totient is φ = 6534135850.

The previous prime is 6534135781. The next prime is 6534135863. The reversal of 6534135851 is 1585314356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6534135851 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 6534135799 and 6534135808.

It is not a weakly prime, because it can be changed into another prime (6534135871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267067925 + 3267067926.

It is an arithmetic number, because the mean of its divisors is an integer number (3267067926).

Almost surely, 2^6534135851 is an apocalyptic number.

6534135851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6534135851 is an equidigital number, since it uses as much as digits as its factorization.

6534135851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 41.

The square root of 6534135851 is about 80834.0018247272. The cubic root of 6534135851 is about 1869.5168617549.

The spelling of 6534135851 in words is "six billion, five hundred thirty-four million, one hundred thirty-five thousand, eight hundred fifty-one".