7086909861 has 16 divisors (see below), whose sum is σ = 10642952320. Its totient is φ = 4659884640.

The previous prime is 7086909859. The next prime is 7086909871. The reversal of 7086909861 is 1689096807.

It is not a de Polignac number, because 7086909861 - 2¹ = 7086909859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7086909798 and 7086909807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7086909871) 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 15 ways as a sum of consecutive naturals, for example, 1795825 + ... + 1799766.

It is an arithmetic number, because the mean of its divisors is an integer number (665184520).

Almost surely, 2^7086909861 is an apocalyptic number.

It is an amenable number.

7086909861 is a deficient number, since it is larger than the sum of its proper divisors (3556042459).

7086909861 is a wasteful number, since it uses less digits than its factorization.

7086909861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595673 (or 3595667 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 7086909861 is about 84183.7862120729. The cubic root of 7086909861 is about 1920.8154324418.

The spelling of 7086909861 in words is "seven billion, eighty-six million, nine hundred nine thousand, eight hundred sixty-one".