853449869087 has 2 divisors, whose sum is σ = 853449869088. Its totient is φ = 853449869086.

The previous prime is 853449868993. The next prime is 853449869089. The reversal of 853449869087 is 780968944358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853449869087 - 2²⁸ = 853181433631 is a prime.

Together with 853449869089, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 853449869087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853449869089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426724934543 + 426724934544.

It is an arithmetic number, because the mean of its divisors is an integer number (426724934544).

Almost surely, 2^853449869087 is an apocalyptic number.

853449869087 is a deficient number, since it is larger than the sum of its proper divisors (1).

853449869087 is an equidigital number, since it uses as much as digits as its factorization.

853449869087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 418037760, while the sum is 71.

The spelling of 853449869087 in words is "eight hundred fifty-three billion, four hundred forty-nine million, eight hundred sixty-nine thousand, eighty-seven".