85663758271 has 32 divisors (see below), whose sum is σ = 112586342400. Its totient is φ = 63329696640.

The previous prime is 85663758161. The next prime is 85663758281. The reversal of 85663758271 is 17285736658.

It is a happy number.

It is not a de Polignac number, because 85663758271 - 2⁷ = 85663758143 is a prime.

It is a super-2 number, since 2×85663758271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85663758281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441751 + ... + 605368.

It is an arithmetic number, because the mean of its divisors is an integer number (3518323200).

Almost surely, 2^85663758271 is an apocalyptic number.

85663758271 is a deficient number, since it is larger than the sum of its proper divisors (26922584129).

85663758271 is a wasteful number, since it uses less digits than its factorization.

85663758271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047199.

The product of its digits is 16934400, while the sum is 58.

The spelling of 85663758271 in words is "eighty-five billion, six hundred sixty-three million, seven hundred fifty-eight thousand, two hundred seventy-one".