86505896197 has 16 divisors (see below), whose sum is σ = 100966550400. Its totient is φ = 74085408096.

The previous prime is 86505896189. The next prime is 86505896209. The reversal of 86505896197 is 79169850568.

It is not a de Polignac number, because 86505896197 - 2³ = 86505896189 is a prime.

It is a super-2 number, since 2×86505896197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86505896167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303498 + ... + 514900.

It is an arithmetic number, because the mean of its divisors is an integer number (6310409400).

Almost surely, 2^86505896197 is an apocalyptic number.

It is an amenable number.

86505896197 is a deficient number, since it is larger than the sum of its proper divisors (14460654203).

86505896197 is a wasteful number, since it uses less digits than its factorization.

86505896197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212617 (or 212603 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 64.

The spelling of 86505896197 in words is "eighty-six billion, five hundred five million, eight hundred ninety-six thousand, one hundred ninety-seven".