86895809471 has 4 divisors (see below), whose sum is σ = 86902708200. Its totient is φ = 86888910744.

The previous prime is 86895809443. The next prime is 86895809501. The reversal of 86895809471 is 17490859868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86895809471 - 2¹⁸ = 86895547327 is a prime.

It is a super-3 number, since 3×86895809471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86895809398 and 86895809407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86895809431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3430436 + ... + 3455673.

It is an arithmetic number, because the mean of its divisors is an integer number (21725677050).

Almost surely, 2^86895809471 is an apocalyptic number.

86895809471 is a deficient number, since it is larger than the sum of its proper divisors (6898729).

86895809471 is a wasteful number, since it uses less digits than its factorization.

86895809471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898728.

The product of its (nonzero) digits is 34836480, while the sum is 65.

The spelling of 86895809471 in words is "eighty-six billion, eight hundred ninety-five million, eight hundred nine thousand, four hundred seventy-one".