86509507266 has 96 divisors (see below), whose sum is σ = 233612520960. Its totient is φ = 22526854272.

The previous prime is 86509507243. The next prime is 86509507283. The reversal of 86509507266 is 66270590568.

It is a happy number.

86509507266 is a `hidden beast` number, since 8 + 6 + 509 + 5 + 0 + 72 + 66 = 666.

It is a super-2 number, since 2×86509507266² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204865 + ... + 463668.

It is an arithmetic number, because the mean of its divisors is an integer number (2433463760).

Almost surely, 2^86509507266 is an apocalyptic number.

86509507266 is an abundant number, since it is smaller than the sum of its proper divisors (147103013694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86509507266 is a wasteful number, since it uses less digits than its factorization.

86509507266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668640 (or 668637 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 86509507266 in words is "eighty-six billion, five hundred nine million, five hundred seven thousand, two hundred sixty-six".