853923853877 has 2 divisors, whose sum is σ = 853923853878. Its totient is φ = 853923853876.

The previous prime is 853923853841. The next prime is 853923853879. The reversal of 853923853877 is 778358329358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 841327383121 + 12596470756 = 917239^2 + 112234^2 .

It is a cyclic number.

It is not a de Polignac number, because 853923853877 - 2²² = 853919659573 is a prime.

It is a super-2 number, since 2×853923853877² (a number of 25 digits) contains 22 as substring.

Together with 853923853879, 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 (853923853879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426961926938 + 426961926939.

It is an arithmetic number, because the mean of its divisors is an integer number (426961926939).

Almost surely, 2^853923853877 is an apocalyptic number.

It is an amenable number.

853923853877 is a deficient number, since it is larger than the sum of its proper divisors (1).

853923853877 is an equidigital number, since it uses as much as digits as its factorization.

853923853877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 304819200, while the sum is 68.

The spelling of 853923853877 in words is "eight hundred fifty-three billion, nine hundred twenty-three million, eight hundred fifty-three thousand, eight hundred seventy-seven".