827494137599 has 2 divisors, whose sum is σ = 827494137600. Its totient is φ = 827494137598.

The previous prime is 827494137541. The next prime is 827494137601. The reversal of 827494137599 is 995731494728.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 827494137599 - 2²⁸ = 827225702143 is a prime.

Together with 827494137601, 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 (827494131599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413747068799 + 413747068800.

It is an arithmetic number, because the mean of its divisors is an integer number (413747068800).

Almost surely, 2^827494137599 is an apocalyptic number.

827494137599 is a deficient number, since it is larger than the sum of its proper divisors (1).

827494137599 is an equidigital number, since it uses as much as digits as its factorization.

827494137599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137168640, while the sum is 68.

The spelling of 827494137599 in words is "eight hundred twenty-seven billion, four hundred ninety-four million, one hundred thirty-seven thousand, five hundred ninety-nine".