86790905191 has 8 divisors (see below), whose sum is σ = 90615951360. Its totient is φ = 82970153112.

The previous prime is 86790905167. The next prime is 86790905207. The reversal of 86790905191 is 19150909768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86790905191 - 2¹³ = 86790896999 is a prime.

It is a super-2 number, since 2×86790905191² (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 (86790105191) 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, 1032175 + ... + 1113088.

It is an arithmetic number, because the mean of its divisors is an integer number (11326993920).

Almost surely, 2^86790905191 is an apocalyptic number.

86790905191 is a deficient number, since it is larger than the sum of its proper divisors (3825046169).

86790905191 is a wasteful number, since it uses less digits than its factorization.

86790905191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147045.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 86790905191 in words is "eighty-six billion, seven hundred ninety million, nine hundred five thousand, one hundred ninety-one".