853493526839 has 2 divisors, whose sum is σ = 853493526840. Its totient is φ = 853493526838.

The previous prime is 853493526799. The next prime is 853493526869. The reversal of 853493526839 is 938625394358.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853493526839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853493526869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426746763419 + 426746763420.

It is an arithmetic number, because the mean of its divisors is an integer number (426746763420).

Almost surely, 2^853493526839 is an apocalyptic number.

853493526839 is a deficient number, since it is larger than the sum of its proper divisors (1).

853493526839 is an equidigital number, since it uses as much as digits as its factorization.

853493526839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 167961600, while the sum is 65.

The spelling of 853493526839 in words is "eight hundred fifty-three billion, four hundred ninety-three million, five hundred twenty-six thousand, eight hundred thirty-nine".