85811260551471 has 24 divisors (see below), whose sum is σ = 152553352092960. Its totient is φ = 45263082488256.

The previous prime is 85811260551463. The next prime is 85811260551473. The reversal of 85811260551471 is 17415506211858.

85811260551471 is a `hidden beast` number, since 8 + 5 + 8 + 1 + 12 + 6 + 0 + 551 + 4 + 71 = 666.

It is not a de Polignac number, because 85811260551471 - 2³ = 85811260551463 is a prime.

It is a super-3 number, since 3×85811260551471³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85811260551473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52387826136 + ... + 52387827773.

It is an arithmetic number, because the mean of its divisors is an integer number (6356389670540).

Almost surely, 2^{85811260551471} is an apocalyptic number.

85811260551471 is a deficient number, since it is larger than the sum of its proper divisors (66742091541489).

85811260551471 is a wasteful number, since it uses less digits than its factorization.

85811260551471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104775653935 (or 104775653932 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 54.

The spelling of 85811260551471 in words is "eighty-five trillion, eight hundred eleven billion, two hundred sixty million, five hundred fifty-one thousand, four hundred seventy-one".