67855853539 has 2 divisors, whose sum is σ = 67855853540. Its totient is φ = 67855853538.

The previous prime is 67855853503. The next prime is 67855853557. The reversal of 67855853539 is 93535855876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67855853539 - 2⁷ = 67855853411 is a prime.

It is not a weakly prime, because it can be changed into another prime (67855853839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33927926769 + 33927926770.

It is an arithmetic number, because the mean of its divisors is an integer number (33927926770).

Almost surely, 2^67855853539 is an apocalyptic number.

67855853539 is a deficient number, since it is larger than the sum of its proper divisors (1).

67855853539 is an equidigital number, since it uses as much as digits as its factorization.

67855853539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080000, while the sum is 64.

The spelling of 67855853539 in words is "sixty-seven billion, eight hundred fifty-five million, eight hundred fifty-three thousand, five hundred thirty-nine".