85687674471 has 32 divisors (see below), whose sum is σ = 145808768000. Its totient is φ = 48718311840.

The previous prime is 85687674431. The next prime is 85687674473. The reversal of 85687674471 is 17447678658.

85687674471 is a `hidden beast` number, since 8 + 56 + 87 + 67 + 447 + 1 = 666.

It is not a de Polignac number, because 85687674471 - 2¹³ = 85687666279 is a prime.

It is a super-3 number, since 3×85687674471³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 85687674399 and 85687674408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85687674473) 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, 1101520 + ... + 1176741.

It is an arithmetic number, because the mean of its divisors is an integer number (4556524000).

Almost surely, 2^85687674471 is an apocalyptic number.

85687674471 is a deficient number, since it is larger than the sum of its proper divisors (60121093529).

85687674471 is a wasteful number, since it uses less digits than its factorization.

85687674471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278476 (or 2278470 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 63.

The spelling of 85687674471 in words is "eighty-five billion, six hundred eighty-seven million, six hundred seventy-four thousand, four hundred seventy-one".