86405687516 has 24 divisors (see below), whose sum is σ = 159522930000. Its totient is φ = 40837837824.

The previous prime is 86405687503. The next prime is 86405687519. The reversal of 86405687516 is 61578650468.

It is a super-2 number, since 2×86405687516² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86405687519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231931 + ... + 1300178.

It is an arithmetic number, because the mean of its divisors is an integer number (6646788750).

Almost surely, 2^86405687516 is an apocalyptic number.

It is an amenable number.

86405687516 is a deficient number, since it is larger than the sum of its proper divisors (73117242484).

86405687516 is a wasteful number, since it uses less digits than its factorization.

86405687516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532581 (or 2532579 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 86405687516 in words is "eighty-six billion, four hundred five million, six hundred eighty-seven thousand, five hundred sixteen".