86856374465 has 16 divisors (see below), whose sum is σ = 119130886272. Its totient is φ = 59551870464.

The previous prime is 86856374443. The next prime is 86856374471. The reversal of 86856374465 is 56447365868.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86856374465 - 2¹⁰ = 86856373441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86856374398 and 86856374407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180497 + ... + 454193.

It is an arithmetic number, because the mean of its divisors is an integer number (7445680392).

Almost surely, 2^86856374465 is an apocalyptic number.

It is an amenable number.

86856374465 is a deficient number, since it is larger than the sum of its proper divisors (32274511807).

86856374465 is a wasteful number, since it uses less digits than its factorization.

86856374465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282776.

The product of its digits is 116121600, while the sum is 62.

The spelling of 86856374465 in words is "eighty-six billion, eight hundred fifty-six million, three hundred seventy-four thousand, four hundred sixty-five".