85851738780655 has 8 divisors (see below), whose sum is σ = 109082209274352. Its totient is φ = 64641309199488.

The previous prime is 85851738780547. The next prime is 85851738780677. The reversal of 85851738780655 is 55608783715858.

85851738780655 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85851738780655 - 2¹³ = 85851738772463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505010228037 + ... + 505010228206.

It is an arithmetic number, because the mean of its divisors is an integer number (13635276159294).

Almost surely, 2^{85851738780655} is an apocalyptic number.

85851738780655 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

85851738780655 is a deficient number, since it is larger than the sum of its proper divisors (23230470493697).

85851738780655 is a wasteful number, since it uses less digits than its factorization.

85851738780655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010020456265.

The product of its (nonzero) digits is 2257920000, while the sum is 76.

The spelling of 85851738780655 in words is "eighty-five trillion, eight hundred fifty-one billion, seven hundred thirty-eight million, seven hundred eighty thousand, six hundred fifty-five".