4107091985 has 8 divisors (see below), whose sum is σ = 4928919336. Its totient is φ = 3285400960.

The previous prime is 4107091979. The next prime is 4107091993. The reversal of 4107091985 is 5891907014.

It can be written as a sum of positive squares in 4 ways, for example, as 1514143744 + 2592948241 = 38912^2 + 50921^2 .

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

It is not a de Polignac number, because 4107091985 - 2¹⁰ = 4107090961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51947 + ... + 104463.

It is an arithmetic number, because the mean of its divisors is an integer number (616114917).

Almost surely, 2^4107091985 is an apocalyptic number.

It is an amenable number.

4107091985 is a deficient number, since it is larger than the sum of its proper divisors (821827351).

4107091985 is a wasteful number, since it uses less digits than its factorization.

4107091985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68163.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 4107091985 is about 64086.5975458208. The cubic root of 4107091985 is about 1601.4429671426.

Adding to 4107091985 its reverse (5891907014), we get a palindrome (9998998999).

The spelling of 4107091985 in words is "four billion, one hundred seven million, ninety-one thousand, nine hundred eighty-five".