86853835049 has 2 divisors, whose sum is σ = 86853835050. Its totient is φ = 86853835048.

The previous prime is 86853834901. The next prime is 86853835109. The reversal of 86853835049 is 94053835868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49321747225 + 37532087824 = 222085^2 + 193732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86853835049 is a prime.

It is not a weakly prime, because it can be changed into another prime (86853835949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43426917524 + 43426917525.

It is an arithmetic number, because the mean of its divisors is an integer number (43426917525).

Almost surely, 2^86853835049 is an apocalyptic number.

It is an amenable number.

86853835049 is a deficient number, since it is larger than the sum of its proper divisors (1).

86853835049 is an equidigital number, since it uses as much as digits as its factorization.

86853835049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 86853835049 in words is "eighty-six billion, eight hundred fifty-three million, eight hundred thirty-five thousand, forty-nine".